Getting started with HTML - Learn web development
ar in the content. in this example, the class attribute is an identifying name used to target the element with style information. an attribute should have: a space between it and the element name. (for an element with more than one attribute, the attributes should be separated by spaces too.) the attribute name, followed by an equal sign. an attribute value, wrapped with opening and closing quote marks. active learning: adding attributes to an element another example of an element is <a>. this stands for anchor. an anchor can make the text it encloses into a hyperlink. anchors can take a number of attributes, but several are as follows: href: this attribute's value specifies the web address for the link. for example: href="https://www.mozilla.org/". title: the title attribute speci...
...this is permitted in certain circumstances, but it can also break your markup in other circumstances. for example, if we revisit our link example from earlier, we could write a basic version with only the href attribute, like t...
...this is permitted in certain circumstances, but it can also break your markup in other circumstances. ...
...And 3 more matches

Accessibility API cross-reference
interactive (not browsable) content operable in ways that differ from any of the other interactive aria roles, and may be only a part of the main document. application frame n/a application see <div> and <nonstruct> a region that contains mostly site-oriented content, rather than page-specific content. ...
...r interactive aria roles, and may be only a part of the main document. application frame n/a application see <div> and <nonstruct> a region that contains mostly site-oriented content, rather than page-specific content. ...
...ria roles, and may be only a part of the main document. application frame n/a application see <div> and <nonstruct> a region that contains mostly site-oriented content, rather than page-specific content. ...
...And 3 more matches

nsIEditorMailSupport
editor/idl/nsieditormailsupport.idlscriptable provides simple editing actions for the thunderbird mail editor. inherits from: nsisupports last changed in gecko 1.7 method overview nsisupportsarray getembeddedobjects(); nsidomnode insertascitedquotation(in astring aquotedtext, in astring acitation, in boolean ainserthtml); nsidomnode insertasquotation(in astring aquotedtext); void inserttextwithquotations(in domstring astringtoinsert); void pasteascitedquotation(in astring acitation, in long aselectiontype); void pasteasquotation(in long aselectiontype); void rewrap(in boolean arespectnewlines); void stripcites(); methods getembeddedobjects() get a list of img and object tags in the current document. nsisupportsarray getembeddedobjects(); parameters none. ret...
... void pasteasquotation(in long aselectiontype); void rewrap(in boolean arespectnewlines); void stripcites(); methods getembeddedobjects() get a list of img and object tags in the current document. nsisupportsarray getembeddedobjects(); parameters none. return value an nsisupportsarray containing the img and object tags of the current document. insertascitedquotation() insert a string as quoted text (whose representation is dependent on the editor type), replacing the selected text (if any), including, if possible, a "cite" attribute. nsidomnode insertascitedquotation( in astring aquotedtext, in astring acitation, in boolean ainserthtml ); parameters aquotedtext the actual text to be quoted. acitation the "mid" url of the source message. ainserthtml insert as html? (vs plaintex...
... return value the nsidomnode which was inserted. ...
...And 2 more matches

KeyboardEvent: code values - Web APIs
trolleft" 0x001e "keya" "keya" 0x001f "keys" "keys" 0x0020 "keyd" "keyd" 0x0021 "keyf" "keyf" 0x0022 "keyg" "keyg" 0x0023 "keyh" "keyh" 0x0024 "keyj" "keyj" 0x0025 "keyk" "keyk" 0x0026 "keyl" "keyl" 0x0027 "semicolon" "semicolon" 0x0028 "quote" "quote" 0x0029 "backquote" "backquote" 0x002a "shiftleft" "shiftleft" 0x002b "backslash" "backslash" 0x002c "keyz" "keyz" 0x002d "keyx" "keyx" 0x002e "keyc" "keyc" 0x002f "keyv" "keyv" 0x0030 "keyb" "keyb" 0x0031 "keyn" "keyn" 0x0032 "keym" "key...
...(0x1f) "keyo" "keyo" kvk_ansi_u (0x20) "keyu" "keyu" kvk_ansi_leftbracket (0x21) "bracketleft" "bracketleft" kvk_ansi_i (0x22) "keyi" "keyi" kvk_ansi_p (0x23) "keyp" "keyp" kvk_return (0x24) "enter" "enter" kvk_ansi_l (0x25) "keyl" "keyl" kvk_ansi_j (0x26) "keyj" "keyj" kvk_ansi_quote (0x27) "quote" "quote" kvk_ansi_k (0x28) "keyk" "keyk" kvk_ansi_semicolon (0x29) "semicolon" "semicolon" kvk_ansi_backslash (0x2a) "backslash" "backslash" kvk_ansi_comma (0x2b) "comma" "comma" kvk_ansi_slash (0x2c) "slash" "slash" kvk_ansi_n (0x2d) "keyn" "keyn" kvk_ansi_m (0x2e) "keym" ...
... "backslash" kvk_ansi_comma (0x2b) "comma" "comma" kvk_ansi_slash (0x2c) "slash" "slash" kvk_ansi_n (0x2d) "keyn" "keyn" kvk_ansi_m (0x2e) "keym" "keym" kvk_ansi_period (0x2f) "period" "period" kvk_tab (0x30) "tab" "tab" kvk_space (0x31) "space" "space" kvk_ansi_grave (0x32) "backquote" "backquote" kvk_delete (0x33) "backspace" "backspace" enter key on keypad of powerbook (0x34) "numpadenter" "" kvk_escape (0x35) "escape" "escape" right-command key (0x36) "osright" "osright" kvk_command (0x37) "osleft" "osleft" kvk_shift (0x38) "shiftleft" "shiftleft" kvk_capslock (0x39) "ca...
...And 2 more matches

Grammar and types - JavaScript
or the name of a property or nest an object inside another. the following example uses these options. var car = { manycars: {a: 'saab', b: 'jeep'}, 7: 'mazda' }; console.log(car.manycars.b); // jeep console.log(car[7]); // mazda object property names can be any string, including the empty string. if the property name would not be a valid javascript identifier or number, it must be enclosed in quotes. property names that are not valid identifiers cannot be accessed as a dot (.) property, but can be accessed and set with the array-like notation("[]"). var unusualpropertynames = { '': 'an empty string', '!': 'bang!' } console.log(unusualpropertynames.''); // syntaxerror: unexpected string console.log(unusualpropertynames['']); // an empty string console.log(unusualpropertynames.!); ...
...thod, then discards the temporary string object. you can also use the string.length property with a string literal: // will print the number of symbols in the string including whitespace. console.log("john's cat".length) // in this case, 10. in es2015, template literals are also available. template literals are enclosed by the back-tick (`) (grave accent) character instead of double or single quotes. template strings provide syntactic sugar for constructing strings. (this is similar to string interpolation features in perl, python, and more.) optionally, a tag can be added to allow the string construction to be customized, avoiding injection attacks, or constructing higher-level data structures from string contents. // basic literal string creation `in javascript '\n' is a line-feed.` /...
...ation features in perl, python, and more.) optionally, a tag can be added to allow the string construction to be customized, avoiding injection attacks, or constructing higher-level data structures from string contents. ...
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Creating a dynamic status bar extension - Archive of obsolete content
« previousnext » this article builds upon the article creating a status bar extension, which creates a static status bar panel in the firefox status bar, by dynamically updating its content with information fetched from the web every few minutes. specifically, this sample displays a stock quote in the status bar, and, when you mouse over it, displays a tooltip containing more detailed information about the stock. concepts covered in the previous sample won't be reiterated here; instead, refer to the downloadable sample code or to the previous sample for further details. download the sample you can download a copy of this sample to look over, or to use as the basis for your own extension. or, if you've already got the code from the creating a status bar extension sample, you can...
...shinformation()" /> </statusbar> </overlay> also, notice that the definition of the status bar panel now includes a new property, onclick, which references the javascript function that will be executed whenever the user clicks on the status bar panel. our extension will refresh the stock information display when the user clicks the panel. write the javascript code the work of fetching the stock quote and updating the status bar panel's display is handled by the javascript code in the file stockwatcher.js. unlike our previous sample, this one is implemented as an object. we do this because in future samples in this series, we're going to be doing things that are easier to do if our extension is implemented that way. we use the window.addeventlistener() dom function to tell firefox to call the ...
...ed in milliseconds). refreshinformation() the refreshinformation() function is called whenever we want to update the stock information. it's called whenever the user clicks on the status bar panel, when our extension is first added to a browser window, and by the interval handler to periodically update the display. refreshinformation: function() { var httprequest = null; var fullurl = 'http://quote.yahoo.com/d/quotes.csv?f=sl1d1t1c1ohgv&e=.csv&s=goog'; // ... httprequest = new xmlhttprequest(); httprequest.open('get', fullurl, true); httprequest.onload = inforeceived; httprequest.send(null); } the httprequest variable will contain an xmlhttprequest object. this object is used to configure and run an http request on a web server, which we'll use to fetch the stock quote data. t...
...tprequest = new xmlhttprequest(); httprequest.open('get', fullurl, true); httprequest.onload = inforeceived; httprequest.send(null); } the httprequest variable will contain an xmlhttprequest object. this object is used to configure and run an http request on a web server, which we'll use to fetch the stock quote data. the fullurl variable is the complete url to use when requesting a stock quote. in this case, we're using yahoo's comma-separated values return to fetch easily-parsed stock quote data for google (ticker symbol goog). refreshinformation() embeds another function, inforeceived(), which we'll look at separately shortly. the first thing we do is create a new xmlhttprequest object to use for processing our request. we open the request, specifying that we wish to perform an http ...

Debugging HTML - Learn web development
nd, everything is usually fine, until that dreaded moment when an error occurs — you've done something wrong, so your code doesn't work — either not at all, or not quite how you wanted it to. for example, the following shows an error reported when trying to compile a simple program written in the rust language. here, the error message is relatively easy to understand — "unterminated double quote string". if you look at the listing, you can probably see how println!(hello, world!"); might logically be missing a double quote. however, error messages can quickly get more complicated and less easy to interpret as programs get bigger, and even simple cases can look a little intimidating to someone who doesn't know anything about rust. debugging doesn't have to be scary though — the key to...
...bit more problematic, as it isn't easy to tell where the element is supposed to end. in fact, the whole of the rest of the text has been strongly emphasised. this section is badly nested: <strong>strong <em>strong emphasised?</strong> what is this?</em>. it is not easy to tell how this has been interpreted because of the previous problem. the href attribute value is missing a closing double quote. this seems to have caused the biggest problem — the link has not rendered at all. now let's look at the markup the browser has rendered, as opposed to the markup in the source code. to do this, we can use the browser developer tools. if you are not familiar with how to use your browser's developer tools, take a few minutes to review discover browser developer tools. in the dom inspector...
...n closing tags. it isn't clear where the first <strong> element should be closed, so the browser has wrapped each separate block of text with its own strong tag, right down to the bottom of the document! the incorrect nesting has been fixed by the browser as shown here: <strong>strong <em>strong emphasised?</em> </strong> <em> what is this?</em> the link with the missing double quote has been deleted altogether. the last list item looks like this: <li> <strong>unclosed attributes: another common source of html problems. let's look at an example: </strong> </li> html validation so you can see from the above example that you really want to make sure your html is well-formed! but how? in a small example like the one seen above, it is easy to search through th...
...iguous, but basically refers to the fact there are open elements that need to be properly closed. the line numbers point to the last few lines of the file, and this error message comes with a line of code that points out an example of an open element: example: <a href="https://www.mozilla.org/>link to mozilla homepage</a> ↩ </ul>↩ </body>↩</html> note: an attribute missing a closing quote can result in an open element because the rest of the document is interpreted as the attribute's content. "unclosed element ul": this is not very helpful, as the <ul> element is closed correctly. this error comes up because the <a> element is not closed, due to the missing closing quote mark. if you can't work out what every error message means, don't worry about it — a good idea is to ...

nsIMsgHeaderParser
s, out string addresses, out pruint32 numaddresses); void parseheaderswitharray(in wstring aline, [array, size_is(count)] out wstring aemailaddresses, [array, size_is(count)] out wstring anames, [array, size_is(count)] out wstring afullnames, [retval] out unsigned long count); void reformatheaderaddresses(in string line, out string reformattedaddress); wstring reformatunquotedaddresses(in wstring line); void removeduplicateaddresses(in string addrs, in string other_addrs, in prbool removealiasestome, out string newaddress); string unquotephraseoraddr(in string line, in boolean preserveintegrity); wstring unquotephraseoraddrwstring(in wstring line, in boolean preserveintegrity); methods extractheaderaddressmailboxes() given a string ...
...ring which contains a list of header addresses, returns a new string with the same data, but inserts missing commas, parses and reformats it, and wraps long lines with newline-tab. string reformatheaderaddresses( in string line ); parameters line the header line to parse. return value the reformatted header line. exceptions thrown missing exception missing description reformatunquotedaddresses() given a string, will make it safe to use by adding missing quote and escaping needed quote wstring reformatunquotedaddresses( in wstring line ); parameters line the header line to parse. return value safe addresses (?) exceptions thrown missing exception missing description native code only!removeduplicateaddresses returns a copy of addrs which may have had some a...
...liasestome ); parameters addrs the addresses to remove duplicates from. other_addrs other addresses that the duplicate removal process also checks for duplicates against. addresses in this list will not be added to the result. return value a string based on the original without the duplicate addresses. exceptions thrown missing exception missing description native code only!unquotephraseoraddr this function removes the quoting if you want to show the names to users. e.g. summary file, address book. if preserveintegrity is set to true, quote will not be removed in case the name part of the email contains a comma. string unquotephraseoraddr( in string line, in boolean preserveintegrity ); parameters line the header line to parse. preserveintegrity set to true, q...
...eserveintegrity is set to true, quote will not be removed in case the name part of the email contains a comma. string unquotephraseoraddr( in string line, in boolean preserveintegrity ); parameters line the header line to parse. preserveintegrity set to true, quote will not be removed return value user friendly names exceptions thrown missing exception missing description unquotephraseoraddrwstring() this function removes the quoting if you want to show the names to users. e.g. summary file, address book. if preserveintegrity is set to true, quote will not be removed in case the name part of the email contains a comma. wstring unquotephraseoraddrwstring( in wstring line, in boolean preserveintegrity ); parameters line the header line to parse. preserveintegri...

src - CSS: Cascading Style Sheets
specifies the resource containing font data. it is required for the @font-face rule to be valid. ...
... specifies an external reference consisting of a <url>, followed by an optional hint us...
.../* relative url */ src: url(path/to/font.woff) format("woff"); /* explicit format */ src: url('path/to/font.woff'); /* quoted url */ src: url(path/to/svgfont.svg#example); /* fragment identifying font */ /* <font-face-name> values */ src: local(font); /* unquoted name */ src: local(some font); /* name containing space */ src: local("font"); /* quoted name */ /* multiple items */ src: local(font), url(path/to/font.svg) format("svg"), url(path/to/font.woff) format("woff"), url(path/to/font.otf) format("opentype"); values <url> [ format( <string># ) ]? specifies an external reference consisting of a <url>, followed by an optional hint using the format() function to describe the format of the font resource referenced by that url...
...well-known font formats. if a user agent doesn't support the specified formats, it skips downloading the font resource. if no format hints are supplied, the font resource is always downloaded. <font-face-name> specifies the name of a locally-installed font face using the local() function, which uniquely identifies a single font face within a larger family. the name can optionally be enclosed in quotes. description the value of this descriptor is a prioritized, comma-separated list of external references or locally-installed font face names. when a font is needed the user agent iterates over the set of references listed using the first one it can successfully activate. fonts containing invalid data or local font faces that are not found are ignored and the user agent loads the next font in ...

<ms> - MathML
the mathml <ms> element represents a string literal meant to be interpreted by programming languages and computer algebra systems. by default, string literals are displayed as enclosed by double quotes (&quot;); by using the lquote and rquote attributes, you can set custom characters to display. note that quotation marks should not be specified unless they are part of the string literal. the content of an <ms> element is not an ascii string per se, but rather a sequence of characters and <mglyph> and <malignmark> elements. attributes class, id, style provided for use with stylesheets. dir the text direction. possible values are either ltr (left to right) or rtl (right to left). lquote the opening quote character (depends on dir) to enclose the content. the default value is "&quot;". ...
... recommendation current specification mathml 2.0the definition of 'ms' in that specifi...
... recommendation current specification mathml 2.0the definition of 'ms' in that specification. recommen...
...pt ; example fraktur ; example sans-serif ; example bold-sans-serif ; example sans-serif-italic ; example sans-serif-bold-italic ; example monospace ; example initial ; مثال tailed ; مثال looped ; مثال stretched ; مثال rquote the closing quote mark (depends on dir) to enclose the content. the default value is "&quot;". examples <math> <ms lquote="„" rquote="“"> abc </ms> </math> specifications specification status comment mathml 3.0the definition of 'ms' in that specification. recommendation current specification mathml 2.0the definition of 'ms' in that specification. recommendation initial specification ...

execute - Archive of obsolete content
command-line parameters. the following line, for example, passes the "-c" command-line parameter to the executable: err = file.execute(myfile, "-c", true); when you want to pass more than one parameter to the executable itself, however, you must format the args string in a particular way so that the parameters can be broken up and passed separately as required. ...
... line, for example, passes the "-c" command-line parameter to the executable: err = file.execute(myfile, "-c", true); when you want to pass more than one parameter to the executable itself, however, you must format the args string in a particular way so that the parameters can be broken up and passed separately as required. ...
..., "-c", true); when you want to pass more than one parameter to the executable itself, however, you must format the args string in a particular way so that the parameters can be broken up and passed separately as required. in general, you should use single quotes for the args string and double quotes to delimit the command-line arguments within args. the following parsing rules apply: double quotes are treated as quotes; single quotes are ignored by the executable but legal in the execute() method. the outer quotes that frame the args string itself are stripped off when the string is passed to the executable. quotes that are escaped, or "backslashed," are passed through the executable intact. all other backslashed cases are ignored. this means that in order to pass three command-line...

SeaMonkey - making custom toolbar (SM ver. 1.x) - Archive of obsolete content
ton.xul</rdf:li> </rdf:seq> </rdf:li> <!-- calendar --> <rdf:li> <rdf:seq about="chrome://calendar/content/calendar.xul"> <rdf:li>chrome://custombutton/content/button.xul</rdf:li> </rdf:seq> </rdf:li> </rdf:seq> </rdf:rdf> optionally customize the file by changing the displayname, description and author attributes. change the text between double-quote characters on those three lines. optionally remove the sections for toolbars where you do not want your button. save the file. explanation: this file contains details of your extension, and specifies how it modifies seamonkey. 6. create a plain text file named button.xul. copy the following content, making sure that you scroll to get all of it. paste it into the new file: ...
...<toolbarbutton id="custom-button-1" position="10"/> </toolbar> <!-- button details --> <toolbarbutton id="custom-button-1" label="custom" tooltiptext="my custom toolbar button" oncommand="custombutton[1]()" class="toolbarbutton-1 custombutton" /> </overlay> optionally customize the file by changing the label, accesskey and tooltiptext attributes. change the text between double-quote characters on those lines. optionally remove the sections for toolbars that you do not need. save the file. explanation: this xul file adds the button to the toolbars. it also links to the stylesheet and javascript code that the button uses. the last section specifies details of the button. 7. create a plain text file named button.css. copy the following content, making sure tha...
...the name must match the change that you made in step 1. 4. in your working directory, create a new directory named content. move all the files from your original custombutton directory into your new content directory. 5. remove your extension from seamonkey. (for instructions, see the section uninstalling the button, above.) 6. use a...

Command line options
an also control how mozilla applications open, which components open initially, and what the components do when they open. this page describes the commonly used options and how to use them. you can open the command line interface by pressing shift + f2. syntax rules but first, let's describe the syntax rules that apply for all options. command parameters containing spaces must be enclosed in quotes, such as "joel user". command actions are case insensitive. command parameters, except profile names, are case insensitive. blank spaces ( ) separate commands and parameters. each message option follows the syntax field=value, for example: to=foo@nowhere.net subject=cool page attachment=www.mozilla.org attachment='file:///c:/test.txt' body=check this page or also in thunder...
...bject=cool page attachment=www.mozilla.org attachment='file:///c:/test.txt' body=check this page or also in thunderbird 52 and newer: body=c:\path\to\file.txt separate multiple message options by comma (,), for example: "to=foo@nowhere.net,subject=cool page" . comma separators must not follow or precede spaces ( ). to assign multiple values to a field, enclose the values in single quotes ('), for example: "to='foo@nowhere.net,foo@foo.de',subject=cool page" . using command line options command line options follow the command to start the application. if the option contains arguments, enter the argument after the option. some options have abbreviations, for example, "-editor" can be abbreviated as "-edit" (available abbreviations are described in the text below). in some cases,...
...rofile_name while running an instance of the application, you can use the -no-remote option to avoid connecting to a running instance. firefox -createprofile joeluser -createprofile "profile_name profile_dir" creates a new profile in the profile_dir directory, but do not start the application. the profile will be named profile_name in the profile manager. note profile_name and profile_dir are quoted together, and are separated by exactly 1 space (as with the previous syntax, profile_name must not contain spaces). do not run profile_dir while running an instance of the application. you can use the -no-remote option to avoid connecting to a running instance. firefox -createprofile "joeluser c:\internet\joelusers-moz-profile" note: profile_dir must not exist and you must not already have ...

Mozilla Style System Documentation
hich allows the data to take up less memory and allows the data computation to take less time. ...
...utation to take less time. for example, suppose we had the css stylesheet: /* rule 1 */ doc { display: block; text-indent: 1em; } /* rule 2 */ title { display: block; font-size: 3em; } /* rule 3 */ para { display: block; } /* rule 4 */ [class="emph"] { font-style: italic; } and the following document: <doc> <title>a few quotes</title> <para class="emph">benjamin franklin said that <quote>"a penny saved is a penny earned."</quote></para> <para>franklin d. roosevelt said that <quote>"we have nothing to fear but <span class="emph">fear itself</span>."</para> </doc> this will lead to a rule tree that looks like this, where each node is in the format [name of node: rule it points to]: [a: null] ,------' / \ `------. [b: 1] [c: 2...
...context tree will look like this, ignoring all the style contexts for the text nodes (all of which have style contexts pointing to rule node a), with each style context in the format [element type: rule node]: [doc: b] ,------------' | `-----------. [title: c] [para: f] [para: d] | | [quote: a] [quote: a] | [span: e] the reason the rule tree shares style data naturally is that most style rules specify properties in very few structs. as stated above, each style struct contains only features that are inherited by default or those that are set to their initial value ("reset") by default. this leads to (or perhaps three, depending...

Mork
it is structured as a comment so it can be safely ignored by the parser. the header is: // <!-- <mdb:mork:z v="1.4"/> --> this file is therefore version 1.4 of the zany mork format for the message database. versions 1.0-1.3 were never used in any pu...
...it is structured as a comment so it can be safely ignored by the parser. the header is: // <!-- <mdb:mork:z v="1.4"/> --> this file is therefore version 1.4 of the zany mork format for the message database. versions 1.0-1.3 were never used in any publicly-available source code. other seri...
...in the cell. where integer data is used, the convention is to use and store the hexadecimal value for the output. aliases are how dictionary values are stored. they use the same semantics of cells for the value, except that it cannot refer to a mid. the values of cells and aliases, when not specified by a mid reference, are one of the cases where whitespace is significant. using the '\' character quotes the next character; at the end of the line, it represents a continuation such as that found in c\c++ code. the '$' character quotes the next two characters (which must be valid hexadecimal digits) and these three in total represent an octet with the value of the digits. mids are unique identifiers represented by the tuple (scope, id); if the ids are the same but the scopes are different, the two...

<mark>: The Mark Text element - HTML: Hypertext Markup Language
ting and ending tag are mandatory. permitted parents any element that accepts phrasing content. implicit aria role no corresponding role permitted aria roles any dom interface htmlelement attributes this element only includes the global attributes. usage notes typical use cases for <mark> include: when used in a quotation (<q>) or block quote (<blockquote>), it generally indicates text which is of special interest but is not marked in the original source material, or material which needs special scrutiny even though the original author didn't think it was of particular importance. think of this like using a highlighter pen in a book to mark passages that you find of interest. otherwise, <mark> indicates a portion of the document's co...
...'t use <mark> for syntax highlighting purposes; instead, use the <span> element with appropriate css applied to it. don't confuse <mark> with the <strong> element; <mark> is used to denote content which has a degree of relevance, while <strong> indicates spans of text of importance. examples marking text of interest in this first example, a <mark> element is used to mark some text within a quote which is of particular interest to the user. <blockquote> it is a period of civil war. rebel spaceships, striking from a hidden base, have won their first victory against the evil galactic empire. during the battle, <mark>rebel spies managed to steal secret plans</mark> to the empire’s ultimate weapon, the death star, an armored space station with enough power to destroy an entire ...
... <p>it is a dark time for the rebellion. ...

<q>: The Inline Quotation element - HTML: Hypertext Markup Language
the source for this interactive example is stored in a github repository. if you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request. ...
... content categories flow content, phrasing content, palpable content. permitted content phrasing content. tag omission none, both the starting and ending tag are mandatory. permitted parents any element that accepts phrasing content. implicit aria role no corresponding role permitted aria roles any dom interface htmlquoteelement usage note: most modern browsers will automatically add quotation marks around text inside a <q> element. a style rule may be needed to add quotation marks in older browsers. attributes this element includes the global attributes. cite the value of this attribute is a url that designates a source document or message for the information quoted. this attribute is intended to p...
...add quotation marks around text inside a <q> element. a style rule may be needed to add quotation marks in older browsers. attributes this element includes the global attributes. cite the value of this attribute is a url that designates a source document or message for the information quoted. this attribute is intended to point to information explaining the context or the reference for the quote. example <p>according to mozilla's website, <q cite="https://www.mozilla.org/about/history/details/">firefox 1.0 was released in 2004 and became a big success.</q></p> specifications specification status comment html living standardthe definition of '<q>' in that specification. living standard html5the definition of '<q>' in that specifica...

HTML documentation index - HTML: Hypertext Markup Language
obsolete html big element (<big>) renders the enclosed text at a font size one level larger than the surrounding text (medium becomes large, for example). 71 <blink>: the blinking text element (obsolete) blink, element, html, obsolete, reference, web the html blink element (<blink>) is a non-standard element which causes the enclosed text to flash slowly. 72 <blockquote>: the block quotation element blockquote, element, html, html grouping content, html:flow content, html:palpable content, html:sectioning root, quotations, reference, web the html <blockquote> element (or html block quotation element) indicates that the enclosed text is an extended quotation. usually, this is rendered visually by indentation (see notes for how to change it). a url for t...
...178 <progress>: the progress indicator element element, html, html forms, html5, reference, web the html <progress> element displays an indicator showing the completion progress of a task, typically displayed as a progress bar. 179 <q>: the inline quotation element citation, cite, element, html, html text-level semantics, q, quotation, quotation marks, reference, web, quote the html <q> element indicates that the enclosed text is a short inline quotation. most modern browsers implement this by surrounding the text in quotation marks. 180 <rb>: the ruby base element element, html, html text-level semantics, reference, ruby, text, web the html ruby base (<rb>) element is used to delimit the base text component of a <ruby> annotation, i.e.
...t or no longer accurate. however, <s> is not appropriate when indicating document edits; for that, use the <del> and <ins> elements, as appropriate. 186 <samp>: the sample output element element, html, html text-level semantics, inline sample, reference, sample output, sample text, web the html sample element (<samp>) is used to enclose inline text which represents sample (or quoted) output from a computer program. 187 <script>: the script element element, html, html scripting, html:flow content, html:metadata content, html:phrasing content, html:script-supporting element, reference, script, web, tag the html <script> element is used to embed executable code or data; this is typically used to embed or refer to javascript code. 188 <section>: ...

CSP: base-uri - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: child-src - HTTP
ng the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a schema such as 'http:' or 'https:'. the colon is required, single quotes shouldn't be used. you can also specify data schemas (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows to enable specific inline event handlers. if you only need to allow inline eve...
...o enable specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method compared to using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. you must include the single quotes. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' a whitelist for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise trivial. see unsafe...

CSP: connect-src - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: default-src - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: font-src - HTTP
ng the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a schema such as 'http:' or 'https:'. the colon is required, single quotes shouldn't be used. you can also specify data schemas (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows to enable specific inline event handlers. if you only need to allow inline eve...
...o enable specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method compared to using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. you must include the single quotes. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' a whitelist for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise trivial. see unsafe...

CSP: form-action - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: frame-ancestors - HTTP
setting. only the sources listed below are allowed: <host-source> internet hosts by name or ip address, as well as an optional url scheme and/or port number, separated by spaces. the site's address may include an optional leading wildcard (the asterisk character, '*'), and you may use a wildcard (again, '*') as the port number, indicating that all legal ports are valid for the source. single quotes surrounding the host are not allowed. examples: http://*.example.com: matches all attempts to load from any subdomain of example.com using the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. if no url scheme is specified for a host-source a...
...https://store.example.com: matches all attempts to access store.example.com using https:. if no url scheme is specified for a host-source and the iframe is loaded from an https url, the url for the page loading the iframe must also be https, per the w3c spec on matching source expressions. <scheme-source> a scheme such as http: or https:. the colon is required and scheme should not be quoted. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: ur...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'none' refers to the empty set; that is, no urls match. the single quotes are required. examples content-security-policy: frame-ancestors 'none'; content-security-policy: frame-ancestors 'self' https://www.example.org; specif...

CSP: frame-src - HTTP
ng the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a schema such as 'http:' or 'https:'. the colon is required, single quotes shouldn't be used. you can also specify data schemas (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows to enable specific inline event handlers. if you only need to allow inline eve...
...o enable specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method compared to using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. you must include the single quotes. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' a whitelist for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise trivial. see unsafe...

CSP: img-src - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: manifest-src - HTTP
ng the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a schema such as 'http:' or 'https:'. the colon is required, single quotes shouldn't be used. you can also specify data schemas (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows to enable specific inline event handlers. if you only need to allow inline eve...
...o enable specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method compared to using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. you must include the single quotes. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' a whitelist for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise trivial. see unsafe...

CSP: media-src - HTTP
ng the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a schema such as 'http:' or 'https:'. the colon is required, single quotes shouldn't be used. you can also specify data schemas (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows to enable specific inline event handlers. if you only need to allow inline eve...
...o enable specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method compared to using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. you must include the single quotes. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' a whitelist for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise trivial. see unsafe...

CSP: navigate-to - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: object-src - HTTP
ng the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a schema such as 'http:' or 'https:'. the colon is required, single quotes shouldn't be used. you can also specify data schemas (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows to enable specific inline event handlers. if you only need to allow inline eve...
...o enable specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method compared to using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. you must include the single quotes. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' a whitelist for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise trivial. see unsafe...

CSP: prefetch-src - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: script-src-attr - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: script-src-elem - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: script-src - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: style-src-attr - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: style-src-elem - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: style-src - HTTP
. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a scheme such as http: or https:. the colon is required. unlike other values below, single quotes shouldn't be used. you can also specify data schemes (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline even...
...'unsafe-hashes' allows enabling specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method than using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. the single quotes are required. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' an allow-list for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise triv...

CSP: worker-src - HTTP
ng the http: url scheme. mail.example.com:443: matches all attempts to access port 443 on mail.example.com. https://store.example.com: matches all attempts to access store.example.com using https:. *.example.com: matches all attempts to load from any subdomain of example.com using the current protocol. <scheme-source> a schema such as 'http:' or 'https:'. the colon is required, single quotes shouldn't be used. you can also specify data schemas (not recommended). data: allows data: uris to be used as a content source. this is insecure; an attacker can also inject arbitrary data: uris. use this sparingly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: all...
...aringly and definitely not for scripts. mediastream: allows mediastream: uris to be used as a content source. blob: allows blob: uris to be used as a content source. filesystem: allows filesystem: uris to be used as a content source. 'self' refers to the origin from which the protected document is being served, including the same url scheme and port number. you must include the single quotes. some browsers specifically exclude blob and filesystem from source directives. sites needing to allow these content types can specify them using the data attribute. 'unsafe-eval' allows the use of eval() and similar methods for creating code from strings. you must include the single quotes. 'unsafe-hashes' allows to enable specific inline event handlers. if you only need to allow inline eve...
...o enable specific inline event handlers. if you only need to allow inline event handlers and not inline <script> elements or javascript: urls, this is a safer method compared to using the unsafe-inline expression. 'unsafe-inline' allows the use of inline resources, such as inline <script> elements, javascript: urls, inline event handlers, and inline <style> elements. you must include the single quotes. 'none' refers to the empty set; that is, no urls match. the single quotes are required. 'nonce-<base64-value>' a whitelist for specific inline scripts using a cryptographic nonce (number used once). the server must generate a unique nonce value each time it transmits a policy. it is critical to provide an unguessable nonce, as bypassing a resource’s policy is otherwise trivial. see unsafe...

SyntaxError: JSON.parse: bad parsing - JavaScript
or: json.parse: unexpected character syntaxerror: json.parse: end of data while reading object contents syntaxerror: json.parse: expected property name or '}' syntaxerror: json.parse: end of data when ',' or ']' was expected syntaxerror: json.parse: expected ',' or ']' after array element syntaxerror: json.parse: end of data when property name was expected syntaxerror: json.parse: expected double-quoted property name syntaxerror: json.parse: end of data after property name when ':' was expected syntaxerror: json.parse: expected ':' after property name in object syntaxerror: json.parse: end of data after property value in object syntaxerror: json.parse: expected ',' or '}' after property value in object syntaxerror: json.parse: expected ',' or '}' after property-value pair in object literal synt...
...this string has to be valid json and will throw this error...
...ax was encountered. examples json.parse() does not allow trailing commas both lines will throw a syntaxerror: json.parse('[1, 2, 3, 4,]'); json.parse('{"foo": 1,}'); // syntaxerror json.parse: unexpected character // at line 1 column 14 of the json data omit the trailing commas to parse the json correctly: json.parse('[1, 2, 3, 4]'); json.parse('{"foo": 1}'); property names must be double-quoted strings you cannot use single-quotes around properties, like 'foo'. json.parse("{'foo': 1}"); // syntaxerror: json.parse: expected property name or '}' // at line 1 column 2 of the json data instead write "foo": json.parse('{"foo": 1}'); leading zeros and decimal points you cannot use leading zeros, like 01, and decimal points must be followed by at least one digit. json.parse('{"foo": 01...

String - JavaScript
g the string() constructor: const string1 = "a string primitive"; const string2 = 'also a string primitive'; const string3 = `yet another string primitive`; const string4 = new string("a string object"); string primitives and string objects can be used interchangeably in most situations. see "string primitives and string objects" below. string literals can be specified using single or double quotes, which are treated identically, or using the backtick character `. this last form specifies a template literal: with this form you can interpolate expressions. character access there are two ways to access an individual character in a string. the first is the charat() method: return 'cat'.charat(1) // returns "a" the other way (introduced in ecmascript 5) is to treat the string as an array-...
... return str1.touppercase() === str2.touppercase() } // isequal upper case is used instead of lower case in this function, due to problems with certain utf-8 character conversions. string primitives and string objects note that javascript distinguishes between string objects and primitive string values. (the same is true of boolean and numbers.) string literals (denoted by double or single quotes) and strings returned from string calls in a non-constructor context (that is, called without using the new keyword) are primitive strings. javascript automatically converts primitives to string objects, so that it's possible to use string object methods for primitive strings. in contexts where a method is to be invoked on a primitive string or a property lookup occurs, javascript will automatic...
...ways be converted to its primitive counterpart with the valueof() method. console.log(eval(s2.valueof())) // returns the number 4 escape notation special characters can be encoded using escape notation: code output \xxx (where xxx is 1–3 octal digits; range of 0–377) iso-8859-1 character / unicode code point between u+0000 and u+00ff \' single quote \" double quote \\ backslash \n new line \r carriage return \v vertical tab \t tab \b backspace \f form feed \uxxxx (where xxxx is 4 hex digits; range of 0x0000–0xffff) utf-16 code unit / unicode code point between u+0000 and u+ffff \u{x} ... \u{xxxxxx} (where x…xxxxxx is 1...

cfx - Archive of obsolete content
path or as a path relative to the current directory. --binary-args=cmdargs pass extra arguments to the binary being executed (for example, firefox). for example, to pass the -jsconsole argument to firefox, which will launch the javascript error console, try the following: cfx run --binary-args -jsconsole to pass multiple arguments, or arguments containing spaces, quote them: cfx run --binary-args '-url "www.mozilla.org" -jsconsole' --extra-packages=extra_packages extra packages to include, specified as a comma-separated list of package names. -g config, --use-config=config pass a set of options by referencing a named configuration. -p profiledir, --profiledir=profiledir use an existing profile located in profil...
... path or as a path relative to the current directory. --binary-args=cmdargs pass extra arguments to the binary being executed (for example, firefox). for example, to pass the -jsconsole argument to firefox, which will launch the javascript error console, try the following: cfx run --binary-args -jsconsole to pass multiple arguments, or arguments containing spaces, quote them: cfx run --binary-args '-url "www.mozilla.org" -jsconsole' --dependencies load and run any tests that are included with modules that your package depends on. for example: if your add-on depends on modules from the sdk, then cfx will run the unit tests for the sdk's modules as well as yours. -f filename[:testname], --filter=filename[:testname] only run te...

jpm - Archive of obsolete content
relative to the current directory. jpm run -b /path/to/firefox/nightly see selecting a browser version. --binary-args cmdargs pass extra arguments to firefox. for example, to pass the -jsconsole argument to firefox and launch the browser console, try the following: jpm run --binary-args -jsconsole to pass multiple arguments, or arguments containing spaces, quote them: jpm run --binary-args '-url mzl.la -jsconsole' --debug run the add-on debugger attached to the add-on. -o --overload path rather than use the sdk modules built into firefox, use the modules found at path. if -o is specified and path is omitted, jpm looks for the jetpack_root environment variable and use its value as the path. see overloading the bu...
... current directory. jpm test -b /path/to/firefox/nightly see selecting a browser version. --binary-args cmdargs pass extra arguments to firefox. for example, to pass the -jsconsole argument to firefox, which will launch the browser console, try the following: jpm test --binary-args -jsconsole to pass multiple arguments, or arguments containing spaces, quote them: jpm test --binary-args '-url mzl.la -jsconsole' --debug run the add-on debugger attached to the add-on. -f --filter file[:test] only run tests whose filenames match file and optionally match test, both regexps. jpm test --filter base64:btoa the above command only runs tests in files whose names contain "base64", and in those files only runs te...

Appendix E: DOM Building and Insertion (HTML & XUL) - Archive of obsolete content
generating scripts in this matter is deprecated and should be avoided wherever possible, but is relatively safe and sometimes acceptable. function createscript(href, otherstuff) { var script = function (href, otherstuff) { dostuffwith(href); dootherstuff(); for (var somestuff in otherstuff) dosomemorestuffwith(somestuff); } ...
...s in this matter is deprecated and should be avoided wherever possible, but is relatively safe and sometimes acceptable. function createscript(href, otherstuff) { var script = function (href, otherstuff) { dostuffwith(href); dootherstuff(); for (var somestuff in otherstuff) dosomemorestuffwith(somestuff); } return script.tosource() + "(" + [string.quote(href), uneval(otherstuff)] + ")"; } safely using remote html in the above cases, we're working with text content that needs to appear in generated dom. there are cases, however, where we need to safely display formatted html sent by a remote server. fortunately, there is a safe and simple way to do this. for webextensions the most simple way is sanitize the output about javascript inline decla...

Adding preferences to an extension - Archive of obsolete content
watch and use that to construct the url to monitor, as well as to construct the string to be displayed in the status bar panel. ...
...t to construct the url to monitor, as well as to construct the string to be displayed in the status bar panel. ...

SQLite Templates - Archive of obsolete content
o those with an age greater or equal to 30. query parameters sometimes, you will want to adjust the query depending on certain criteria. one possibility is to simply use methods to adjust the text within the query element and rebuild the template. however, this can become unweidly for more complex queries, and would be more error prone if values were not escaped properly to ensure that extraneous quotes, semicolons and other characters didn't appear in the values. this is especially important when you are taking values that were entered by the user. the solution is to use query parameters, using the param element. <query> select name, email from myfriends where gender = :wantedgender <param name="wantedgender">male</param> </query> in this example, a parameter 'wantedgender' is used. thi...
...te is used to specify the parameter name, and the contents of the param element specify the value to use. when the name appears in the query, preceded by a colon, as ':wantedgender' does in the example above, the value of that parameter will be filled in to the query. the resulting query that gets used will be: select name, email from myfriends where gender = 'male' this technique is used as quotes or other special characters are handled automatically. if a quote appears in the value, it will escaped as needed. now, to adjust the query to something else, say to look up females, all you need to do is get a reference to the param element and adjust the contents. you would likely want to add an id to the param element so that the getelementbyid method may be used to refer to it. you can add a...

Custom toolbar button - Archive of obsolete content
e89b-41dd-9da7-e25a45638b28}" em:minversion="0.2.9" em:maxversion="99" /> </em:targetapplication> <em:file> <description about="urn:mozilla:extension:custombutton" em:package="content/custombutton/" /> </em:file> </description> </rdf> optionally customize the file by changing the name, description and creator. change the text between double-quote characters on these three lines. optionally remove the sections for target applications that you do not want. save the file. explanation: this file contains information used by the application's extension manager. sections for target applications specify the versions where the extension works. the last section in the file specifies that this extension adds content to the application. 4. crea...
...custom-button-1"/> </toolbarpalette> <!-- button details --> <toolbarbutton id="custom-button-1" label="custom" tooltiptext="my custom toolbar button" oncommand="custombutton[1]()" class="toolbarbutton-1 chromeclass-toolbar-additional custombutton" /> </overlay> optionally customize the file by changing the label and tooltiptext in the last section. change the text between double-quote characters on these two lines. optionally remove the sections for toolbars that you do not need. save the file. explanation: this xul file adds the button to the application's toolbar customization palette. it also links to the stylesheet and javascript code that the button uses. the last section specifies details of the button. 7. create a plain text file named button.css. copy the followi...

reftest opportunities files - Archive of obsolete content
tests/html/strike008.html parser/htmlparser/tests/html/strike007.html parser/htmlparser/tests/html/strike006.html parser/htmlparser/tests/html/strike005.html parser/htmlparser/tests/html/strike002.html parser/htmlparser/tests/html/span003.html parser/htmlparser/tests/html/span002.html parser/htmlparser/tests/html/span001.html parser/htmlparser/tests/html/residual.html parser/htmlparser/tests/html/quote003.html parser/htmlparser/tests/html/quote002.html parser/htmlparser/tests/html/quote001.html parser/htmlparser/tests/html/q001.html parser/htmlparser/tests/html/pre016.html parser/htmlparser/tests/html/pre015.html parser/htmlparser/tests/html/pre012.html parser/htmlparser/tests/html/pre007.html parser/htmlparser/tests/html/pre006.html parser/htmlparser/tests/html/pre005.html parser/htmlparser/te...
...ts/html/bug12118.html parser/htmlparser/tests/html/bug11381.html parser/htmlparser/tests/html/bug10324.html parser/htmlparser/tests/html/bug10049.html parser/htmlparser/tests/html/br001.html parser/htmlparser/tests/html/bigtxt.html parser/htmlparser/tests/html/bigscript.html parser/htmlparser/tests/html/bdo001.html parser/htmlparser/tests/html/badscript.html parser/htmlparser/tests/html/attribute_quote_bug1.html parser/htmlparser/tests/html/atoi01.html parser/htmlparser/tests/html/aname01.html parser/htmlparser/tests/html/acronym1.html parser/htmlparser/tests/html/table_illegal_2.html parser/htmlparser/tests/html/table_illegal_1.html parser/htmlparser/tests/html/table06.html parser/htmlparser/tests/html/table05j.html parser/htmlparser/tests/html/table05i.html parser/htmlparser/tests/html/table0...

Using workers in extensions - Archive of obsolete content
the results are received, sends an event back to the main thread with the received data. so we need to move the refreshinformation() method from the stockwatcher2.js file into a separate file that will host the worker thread. ...
...ceived, sends an event back to the main thread with the received data. so we need to move the refreshinformation() method from the stockwatcher2.js file into a separate file that will host the worker thread. ...

Browser Feature Detection - Archive of obsolete content
reakbefore true true true pagebreakinside true false true pause true false true pauseafter true false true pausebefore true false true pitch true false false pitchrange true false true playduring false false false position true true true quotes true false true richness true false false right true true true size true false true speak true false true speakheader true false false speaknumeral true false false speakpunctuation true false false speechrate true false true stress ...
...me: 'pagebreakbefore', 'supported': false}, {name: 'pagebreakinside', 'supported': false}, {name: 'pause', 'supported': false}, {name: 'pauseafter', 'supported': false}, {name: 'pausebefore', 'supported': false}, {name: 'pitch', 'supported': false}, {name: 'pitchrange', 'supported': false}, {name: 'playduring', 'supported': false}, {name: 'position', 'supported': false}, {name: 'quotes', 'supported': false}, {name: 'richness', 'supported': false}, {name: 'right', 'supported': false}, {name: 'size', 'supported': false}, {name: 'speak', 'supported': false}, {name: 'speakheader', 'supported': false}, {name: 'speaknumeral', 'supported': false}, {name: 'speakpunctuation', 'supported': false}, {name: 'speechrate', 'supported': false}, {name: 'stress', 'supported': ...

CSS values and units - Learn web development
rty, which controls the opacity of an element (how transparent it is). this property accepts a number between 0 (fully transparent) and 1 (fully opaque). in the below example, try changing the value of opacity to various decimal values between 0 and 1 and see how the box and its contents become more or less opaque. note: when you use a number in css as a value it should not be surrounded in quotes. color there are many ways to specify color in css, some of which are more recently implemented than others. the same color values can be used everywhere in css, whether you are specifying text color, background color, or whatever else. the standard color system available in modern computers is 24 bit, which allows the display of about 16.7 million distinct colors via a combination of differ...
...sing a keyword. play around with these values to see how you can push the image around. strings and identifiers throughout the examples above, we've seen places where keywords are used as a value (for example <color> keywords like red, black, rebeccapurple, and goldenrod). these keywords are more accurately described as identifiers, a special value that css understands. as such they are not quoted — they are not treated as strings. there are places where you use strings in css, for example when specifying generated content. in this case the value is quoted to demonstrate that it is a string. in the below example we use unquoted color keywords along with a quoted generated content string. functions the final type of value we will take a look at is the group of values known as funct...

JavaScript basics - Learn web development
the variable name: myvariable; after assigning a value to a variable, you can change it later in the code: let myvariable = 'bob'; myvariable = 'steve'; note that variables may hold values that have different data types: variable explanation example string this is a sequence of text known as a string. to signify that the value is a string, enclose it in single quote marks. let myvariable = 'bob'; number this is a number. numbers don't have quotes around them. let myvariable = 10; boolean this is a true/false value. the words true and false are special keywords that don't need quote marks. let myvariable = true; array this is a structure that allows you to store multiple values in a single reference. let myvaria...
... more operators to explore, but this is enough for now. see expressions and operators for a complete list. note: mixing data types can lead to some strange results when performing calculations. be careful that you are referring to your variables correctly, and getting the results you expect. for example, enter '35' + '25' into your console. why don't you get the result you expected? because the quote marks turn the numbers into strings, so you've ended up concatenating strings rather than adding numbers. if you enter, 35 + 25 you'll get the total of the two numbers. conditionals conditionals are code structures used to test if an expression returns true or not. a very common form of conditionals is the if ... else statement. for example: let icecream = 'chocolate'; if(icecream === 'chocol...

Index - Learn web development
script, for now. you'll see numbers used again and again, all the way through your javascript learning, so it's a good idea to get this out of the way now. if you are one of those people that doesn't enjoy math, you can take comfort in the fact that this chapter was pretty short. 79 handling text — strings in javascript article, beginner, codingscripting, guide, javascript, join, quotes, concatenation, l10n:priority, strings next, we'll turn our attention to strings — this is what pieces of text are called in programming. in this article, we'll look at all the common things that you really ought to know about strings when learning javascript, such as creating strings, escaping quotes in strings, and joining strings together. 80 silly story generator array...
... sections (does it have a header? three columns of content? a navigation menu?), and embed content such as images and videos into a page. this module will introduce the first two of these and introduce fundamental concepts and syntax you need to know to understand html. 231 advanced text formatting beginner, codingscripting, guide, html, learn, text, abbreviation, description list, quote, semantic that marks the end of our study of html text semantics. bear in mind that what you have seen during this course is not an exhaustive list of html text elements — we wanted to try to cover the essentials, and some of the more common ones you will see in the wild, or at least might find interesting. to find way more html elements, you can take a look at our html element reference ...

Storing the information you need — Variables - Learn web development
etail. so far we've looked at the first two, but there are others. numbers you can store numbers in variables, either whole numbers like 30 (also called integers) or decimal numbers like 2.456 (also called floats or floating point numbers). you don't need to declare variable types in javascript, unlike some other programming languages. when you give a variable a number value, you don't include quotes: let myage = 17; strings strings are pieces of text. when you give a variable a string value, you need to wrap it in single or double quote marks; otherwise, javascript tries to interpret it as another variable name. let dolphingoodbye = 'so long and thanks for all the fish'; booleans booleans are true/false values — they can have two values, true or false. these are generally used to te...
...ntax: dog.name we won't be looking at objects any more for now — you can learn more about those in a future module. dynamic typing javascript is a "dynamically typed language", which means that, unlike some other languages, you don't need to specify what data type a variable will contain (numbers, strings, arrays, etc). for example, if you declare a variable and give it a value enclosed in quotes, the browser treats the variable as a string: let mystring = 'hello'; even if the value contains numbers, it is still a string, so be careful: let mynumber = '500'; // oops, this is still a string typeof mynumber; mynumber = 500; // much better — now this is a number typeof mynumber; try entering the four lines above into your console one by one, and see what the results are. you'll notice...

Solve common problems in your JavaScript code - Learn web development
deal with in web development? how do you do basic math in javascript? what is operator precedence, and how is it handled in javascript? how do you increment and decrement values in javascript? how do you compare values in javascript? (e.g. to see which one is bigger, or to see if one value is equal to another). ...
... development? how do you do basic math in javascript? what is operator precedence, and how is it handled in javascript? how do you increment and decrement values in javascript? how do you compare values in javascript? (e.g. to see which one is bigger, or to see if one value is equal to another). ...

Working with JSON - Learn web development
"jane wilson", "powers": [ "million tonne punch", "damage resistance", "superhuman reflexes" ] } ] the above is perfectly valid json. you'd just have to access array items (in its parsed version) by starting with an array index, for example [0]["powers"][0]. other notes json is purely a data format — it contains only properties, no methods. json requires double quotes to be used around strings and property names. single quotes are not valid. even a single misplaced comma or colon can cause a json file to go wrong, and not work. you should be careful to validate any data you are attempting to use (although computer-generated json is less likely to include errors, as long as the generator program is working correctly). you can validate json using an applicatio...
... less likely to include errors, as long as the generator program is working correctly). you can validate json using an application like jsonlint. json can actually take the form of any data type that is valid for inclusion inside json, not just arrays or objects. so for example, a single string or number would be a valid json object. unlike in javascript code in which object properties may be unquoted, in json only quoted strings may be used as properties. active learning: working through a json example so, let's work through an example to show how we could make use of some json data on a website. getting started to begin with, make local copies of our heroes.html and style.css files. the latter contains some simple css to style our page, while the former contains some very simple body h...

Gecko info for Windows accessibility vendors
returned from get_accrole, check to see if variant.vt == vt_bstr. if it is, than variant.bstrval contains the role string. the role string may be an html tag name followed by comma, space and the namespace of the current element. in most current cases the namespace can be ignored, but it may become important in the future. the following html tags are exposed as bstr's: abbr, acronym, blockquote, dd, dl, dt, form, frame, h1, h2, h3, h4, h5, h6, iframe, q, tbody, tfoot, thead in addition, an html list uses the bullet bstr role to expose bullets and numbers that are automatically inserted into the formatting by gecko. in addition, role_list with state_readonly and role_listitem are used to expose the list structure. this makes it important to check the state_readonly flag when encount...
...d, state_haspopup used with role_button instead role_buttonmenu not supported, state_haspopup used with role_button instead role_buttondropdowngrid supported for xul <colorpicker> role_pagetablist xul: <tab> dhtml: role="wairole:tabs" "abbr", "acronym", "blockquote", "dd", "dl", "dt", "form", "frame", "h1", "h2", "h3", "h4", "h5", "h6", "iframe", "q", "tbody", "tfoot", "thead" html tag mirrors the role string "bullet" indirectly created for bullets when <ol> or <ul> used to create an html list "abbr", "acronym", "blockquote", "form", "frame", "h1", "h2", "h3", "h4", "h5", "h6", "iframe", "q", "tbod...

Multiple Firefox profiles
rofiles windows if you want to have the profile manager to pop up each time you start firefox, so you can choose a profile, you will need to edit the "target" of the launch icon. to do this: right-click the icon and choose "properties". when the properties dialog box pops up, you should see a "target" text field that you can edit, and it should show the current file path. after the closing quote, add -profilemanager. click ok. now whenever you double click that icon, the profile manager should appear, allowing you to choose which profile you'd like to use. if you want individual icons to launch specific profiles, you will need to edit the "target" of each icon. to do this: right-click the icon and choose "properties". when the properties dialog box pops up, you should see a "targ...
... want individual icons to launch specific profiles, you will need to edit the "target" of each icon. to do this: right-click the icon and choose "properties". when the properties dialog box pops up, you should see a "target" text field that you can edit, and it should show the current file path. to permanently set a specific profile, add -p profile_name to the target path, but outside of the quotes, replacing "profile_name" with the actual profile name you chose. if you would also like to allow multiple instances of firefox to run at the same time, add -no-remote after the profile name. once you are all done, click ok. do this for each icon you'd like to have a specific profile for. once done, each one should automatically start with the specified profile. linux there is no extremely ...

Creating localizable web applications
(_("%1$s by %2$s"), $persona['name'], $persona['display_username']); snippet 6. good: // %1$s is persona name, %2$s is athor's username printf(_("%1$s by %2$s"), $persona['name'], $persona['display_username']); use printf variables swapping use printf() ordered variables (%1$s, %2$s, etc.) to allow changes to the order of the sentence. some languages may require this. remember to use single quotes around the strings containing the formatting symbols. otherwise, php will treat $s as a regular variable, instead of parsing the whole %1$s formatting symbol. snippet 1. bad: $page_header = $persona['name'] . ' by ' . $persona['display_username']; snippet 2. better: printf(_("%s by %s"), $persona['name'], $persona['display_username']); snippet 3. good: // %1$s is the persona's name, %2$s i...
... of parsing the whole %1$s formatting symbol. snippet 1. bad: $page_header = $persona['name'] . ' by ' . $persona['display_username']; snippet 2. better: printf(_("%s by %s"), $persona['name'], $persona['display_username']); snippet 3. good: // %1$s is the persona's name, %2$s is the athor's username printf(_('%1$s by %2$s'), $persona['name'], $persona['display_username']); note the single quotes around '%1$s by %2$s'. don't nest gettext calls snippet 1. bad: <?printf(_("<a href=\"%s\">" . _("personas home") . "</a> : how to create personas"), $locale_conf->url('/'));?> snippet 2. good: <?printf("<a href=\"%s\">" . _("personas home") . "</a> : " . _("how to create personas"), $locale_conf->url('/'));?> don't break long text content into multiple strings don't break long text messa...

Index
lowing lists, key-value pairs, strings, and combinations of all of them. --> valuelist valuelist --> value valuelist <null> value ---> key_value_pair string key_value_pair --> key { valuelist } key --> string string --> simple_string "complex_string" simple_string --> [^ \t\n\""{""}"]+ complex_string --> ([^\"\\\r\n]|(\\\")|(\\\\))+ quotes and backslashes must be escaped with a backslash. a complex string must not include newlines or carriage returns.outside of complex strings, all white space (for example, spaces, tabs, and carriage returns) is considered equal and is used only to delimit tokens. keys the java install file uses keys to define the platform and module information. forwardcompatible gives a l...
... first = sign on a line is interpreted. blank lines are ignored, but white space on a line with keywords and values is assumed to be part of the keyword (if it comes before the equal sign) or part of the value (if it comes after the first equal sign). keywords are case insensitive, values are generally case sensitive. since the = sign and newline delimit the value, it should not be quoted. subsection basename same as -b option. compression same as -c option. certdir same as -d option. extension same as -e option. generate same as -g option. installscript same as -i option. javascriptdir same as -j option. htmldir same as -j option. certname ...

PKCS #11 Module Specs
lank value. a single line, terminated by a '\n', '\r\n', or '\r' represents a single pkcs #11 library. names can be any alpha/numeric combination, and are parsed case-insensitive. values can contain any printable ascii value, including utf8 characters. values can contain embedded blanks either through quoting the entire value, or by escaping the embedded blanks with '\'. the value is considered quoted if the first character after the '=' is ', ", {, [, or <. if the value is quoted, then the value is terminated with and ending quote of the form ', ", ), ], }, or > matching the respective starting quote. ending quotes can be escaped. embedded '\' charaters are considered escape characters for the next character in the stream. note that case must be preserved in the values. these modules specs ...
...to describe the pkcs #11 library in any ui it may have. if the parameter is not specified, no parameters are passed to the pkcs #11 module. if the application/library does not find its application/library specific data, it should use it's defaults for this pkcs #11 library. parameter passing if the parameter is specified, the application/library will strip the value out, processing any outter quotes and escapes appropriately, and pass the parameter to the pkcs #11 library when it calls c_initialize(). a new ck_c_initialize_args structure is defined as typedef struct ck_c_initialize_args { ck_createmutex createmutex; ck_destroymutex destroymutex; ck_lockmutex lockmutex; ck_unlockmutex unlockmutex; ck_flags flags; ck_void_ptr libraryparameters; ck_void_ptr preserved; } ck_c_in...

NSS Tools modutil
a complex string must notinclude newlines or carriage returns.) outside of complex strings, all white space (for example, spaces, tabs, and carriage returns) is considered equal and is used only to delimit tokens. keys keys are case-insensitive. this section discusses the ...
...parc } }} script grammar the script file grammar is as follows: --> valuelistvaluelist --> value valuelist <null>value ---> key_value_pair stringkey_value_pair --> key { valuelist }key --> stringstring --> simple_string "complex_string"simple_string --> [^ \t\n\""{""}"]+ (no whitespace, quotes, or braces.)complex_string --> ([^\"\\\r\n]|(\\\")|(\\\\))+ (quotes andbackslashes must be escaped with a backslash. a complex string must notinclude newlines or carriage returns.) outside of complex strings, all white space (for example, spaces, tabs, and carriage returns) is considered equal and is used only to delimit tokens. keys keys are case-insensitive. this section discusses the following keys: global keysper-platform keysper-file keys globa...

Index
erts jsflatstring * to jsstring *. 268 js_fs jsapi reference, spidermonkey use these macros to define an array of jsfunctionspecs to pass to js_definefunctions or js_initclass. 269 js_fileescapedstring jsapi reference, reference, référence(2), spidermonkey js_fileescapedstring writes str into file fp escaping any non-printable or non-ascii character. if quote is not 0, it must be a single or double quote character that will quote the output. 270 js_finish jsapi reference, obsolete, spidermonkey js_finish is obsolete. use js_destroyruntime instead. 271 js_flattenstring jsapi, jsapi reference, reference, référence(2), spidermonkey js_flattenstring flattens a string str and returns a pointer to jsflatstring. ...
... js_putescapedstring write str into buffer escaping any non-printable or non-ascii character using \escapes for js string literals. guarantees that a nul is at the end of the buffer unless size is 0. returns the length of the written output, not including the nul. thus, a return value of size or more means that the output was truncated. if buffer is null, just returns the length of the output. if quote is not 0, it must be a single or double quote character that will quote the output. 430 js_remove*root jsapi reference, obsolete, spidermonkey js_removeroot removes the variable that rp points to from the garbage collector's root set. 431 js_removeexternalstringfinalizer jsapi reference, obsolete, spidermonkey remove finalizer from the global gc finalizer...

JS_PutEscapedString
this article covers features introduced in spidermonkey 1.8.5 write a string into buffer with escaping. syntax size_t js_putescapedstring(jscontext *cx, char *buffer, size_t size, jsstring *str, char quote); size_t js_putescapedflatstring(char *buffer, size_t size, jsflatstring *str, char quote); name type description cx jscontext * a context. requires request. in a js_threadsafe build, the caller must be in a request on this jscontext. buffer char * a pointer to char buffer to write into. size size_t the size of buffer in bytes. str jsstring * or jsflatstring * a string to write into the file. quote char one of 0, single quote, and double quote. ...
... js_putescapedstring write str into buffer escaping any non-printable or non-ascii character using \escapes for js string literals. guarantees that a nul is at the end of the buffer unless size is 0. returns the length of the written output, not including the nul. thus, a return value of size or more means that the output was truncated. if buffer is null, just returns the length of the output. if quote is not 0, it must be a single or double quote character that will quote the output. see also mxr id search for js_putescapedstring mxr id search for js_putescapedflatstring bug 609440 ...

Feed content access API
to get the title of the feed, yo...
...to get the title of the feed, you look at the feed.title property. the title is a...

mozITXTToHTMLConv
tml( in wstring text, in unsigned long whattodo ); parameters text the original, user-edited html. whattodo a bit field composed of the conversion control attributes indicating what conversions to apply. return value a normalized version of the original html string. citeleveltxt() returns the "cite level" of the specified text; that is, it indicates how many levels of email reply quotes are used, when the text uses "quote" characters (such as ">") at the beginning of the line to indicate cite levels. unsigned long citeleveltxt( in wstring line, out unsigned long loglinestart ); parameters line the original line of text, which may begin with one or more cite characters such as ">". loglinestart on output, this parameter is set to indicate the offset into the string ...
...g citeleveltxt( in wstring line, out unsigned long loglinestart ); parameters line the original line of text, which may begin with one or more cite characters such as ">". loglinestart on output, this parameter is set to indicate the offset into the string of the first non-cite character. you must set this value to zero before calling this method. return value the cite level of the quote; that is, the number of text quote characters found at the beginning of the string. findurlinplaintext() returns the start and end offsets of the first url found in a substring. void findurlinplaintext( in wstring text, in long alength, in long apos, out long astartpos, out long aendpos ); parameters text the string to scan for the presence of a url. alength the length of the...

nsIMsgFolder
n boolean alocalonly, in nsiurllistener aurllistener); void addkeywordstomessages(in nsisupportsarray amessages, in acstring akeywords); void removekeywordsfrommessages(in nsisupportsarray amessages, in acstring akeywords); autf8string getmsgtextfromstream(in nsimsgdbhdr amsghdr, in nsiinputstream astream, in long abytestoread, in long amaxoutputlen, in boolean acompressquotes); attributes attribute type description supportsoffline boolean readonly offlinestoreoutputstream nsioutputstream readonly offlinestoreinputstream nsiinputstream readonly retentionsettings nsimsgretentionsettings downloadsettings nsimsgdownloadsettings sortorder long used for order ...
...words); getmsgtextfromstream() extract the message preview text from astream, storing it as a string property on amsghdr. autf8string getmsgtextfromstream(in nsimsgdbhdr amsghdr, in nsiinputstream astream, in long abytestoread, in long amaxoutputlen, in boolean acompressquotes); ...

nsIMsgIdentity
s, i.e. john@doe.com replyto astring optional replyto address, i.e. ...
...ring optional replyto address, i.e. johnnospam@doe.com organization astring optional organization composehtml boolean should we compose with html by default? attachsignature boolean should we attach a signature by default? attachvcard boolean should we attach a vcard by default? autoquote boolean should we automatically quote the original message? replyontop long should replies appear above or below the quoted message. (1 - replies appear above the quoted message. 0 - replies appear below the quoted message. sigbottom boolean what should our signature be at the end of the quoted text when replying above it? signature nsilocalfile the file containing the current signature. ...

Mail composition back end
ult astatus, - the resulting status for the send operation const prunichar *amsg, - a status message pruint32 atotaltried, - the total messages that were attempted pruint32 asuccessful) = 0; - the number of successful messages quoting quoting a mail message is made possible via the nsimsgquote interface. it is a simple interface that takes a consumer output stream for the quoted data. the message will be output in html form and it is up to the caller to handle plain text conversion. createandsendmessage the quotemessage method is the primary interface for message quoting. ns_imethod quotemessage( const prunichar *msguri, - the uri of t...
... a simple interface that takes a consumer output stream for the quoted data. the message will be output in html form and it is up to the caller to handle plain text conversion. createandsendmessage the quotemessage method is the primary interface for message quoting. ns_imethod quotemessage( const prunichar *msguri, - the uri of the message to be quoted nsioutputstream *outstream) = 0; - the consumer output stream for the quoted data sample programs the mozilla/mailnews/compose/tests/ directory contains sample test programs for all of the above described interfaces. use at your own risk and beware of bitrot! compose - this program shows the use of the createandsendmessage interface (createan...

Web Console Helpers - Firefox Developer Tools
the xpath xpath expression in the context of element and returns an array of matching nodes. if unspecified, element defaults to document. the resulttype parameter specifies the type of result to return; it can be an xpathresult constant, or a corresponding string: "number", "string", "bool", "node", or "nodes"; if not provided, any_type is used. :block (starting in firefox 80) followed by an unquoted string, blocks requests where the url contains that string. in the network monitor, the string now appears and is selected in the request blocking sidebar. unblock with :unblock. cd() switches javascript evaluation context to a different iframe in the page. this helper accepts multiple different ways of identifying the frame to switch to. you can supply any of the following: a selector...
...n the parts of the webpage which are outside the current bounds of the window will be included in the screenshot. when used, "-fullpage" will be appended to the file name. --selector string the css query selector for a single element on the page. when supplied, only this element will be included in the screenshot. :unblock (starting in firefox 80) followed by an unquoted string, removes blocking for urls containing that string. in the network monitor, the string is removed from the request blocking sidebar. no error is given if the string was not previously blocked. values() given an object, returns a list of the values on that object; serves as a companion to keys(). please refer to the console api for more information about logging from content. variables...

URLUtilsReadOnly - Web APIs
droidsafari on iossamsung interneturlutilsreadonlychrome no support noedge no support nofirefox full support 57 full support 57 no support 3.5 — 57notes notes firefox has a bug whereby single quotes contained in urls are escaped when accessed via url apis (see bug 1386683).ie no support noopera no support nosafari no support nowebview android no support nochrome android no support ...
... nowebview android no support nochrome android no support nofirefox android full support 57 full support 57 no support 4 — 57notes notes firefox has a bug whereby single quotes contained in urls are escaped when accessed via url apis (see bug 1386683).opera android no support nosafari ios no support nosamsung internet android no support nohash experimentalchrome no support noedge ...

@charset - CSS: Cascading Style Sheets
ned by the referring document: the charset attribute of the <link> element. this method is obsoleted in html5 and must not be used. assume that the document is utf-8 syntax @charset "utf-8"; @charset "iso-8859-15"; where: charset is a <string> denoting the character encoding to be used. it must be the name of a web-safe character encoding defined in the iana-registry, and must be double-quoted, following exactly one space character (u+0020), and immediately terminated with a semicolon. if several names are associated with an encoding, only the one marked with preferred must be used. formal syntax @charset "<charset>"; examples valid and invalid charset declarations @charset "utf-8"; /* set the encoding of the style sheet to unicode utf-8 */ @charset 'iso-8859-15'; /* inva...
...sung internet@charsetchrome full support 2edge full support 12firefox full support 1.5notes full support 1.5notes notes firefox 1 supported an invalid syntax where the character encoding is not between single or double quotes.ie full support 5.5notes full support 5.5notes notes from internet explorer 5.5 to ie 7 (inclusive), internet explorer supported an invalid syntax where the character encoding is not between single or double quotes.opera full support 9safari full...

CSS Generated Content - CSS: Cascading Style Sheets
css generated content is a module of css that defines how to add content to an element. generated content can be used to add content to anonymous replaced elements or replace the content of a dom node in very limited circumstances with a generated value. ...
...t is a module of css that defines how to add content to an element. generated content can be used to add content to anonymous replaced elements or replace the content of a dom node in very limited circumstances with a generated value. ...

box-shadow - CSS: Cascading Style Sheets
tage> [ / <alpha-value> ]? ) | hsla( <hue>, <percentage>, <percentage>, <alpha-value>? )where <alpha-value> = <number> | <percentage><hue> = <number> | <angle> examples setting three shadows in this example, we include three shadows: an inset shadow, a regular drop shadow, and a 2px shadow that creates a border effect (we could have used an outline instead for that third shadow). ...
...is example, we include three shadows: an inset shadow, a regular drop shadow, and a 2px shadow that creates a border effect (we could have used an outline instead for that third shadow). html <blockquote><q>you may shoot me with your words,<br/> you may cut me with your eyes,<br/> you may kill me with your hatefulness,<br/> but still, like air, i'll rise.</q> <p>&mdash; maya angelou</p> </blockquote> css blockquote { padding: 20px; box-shadow: inset 0 -3em 3em rgba(0,0,0,0.1), 0 0 0 2px rgb(255,255,255), 0.3em 0.3em 1em rgba(0,0,0,0.3); } result setting zero for offset and blur when the x-offset, y-offset, and blur are all zero, the box shadow will be a solid-colored outline of equal-size on all sides. the shadows are drawn back to front, so the...

font-family - CSS: Cascading Style Sheets
ch font family is specified as either a <family-name> or a <generic-name> value. the example below lists two font families, the first with a <family-name> and the second with a <generic-name>: font-family: gill sans extrabold, sans-serif; values <family-name> the name of a font family. for example, "times" and "helvetica" are font families. font family names containing whitespace should be quoted. <generic-name> generic font families are a fallback mechanism, a means of preserving some of the style sheet author's intent when none of the specified fonts are available. generic family names are keywords and must not be quoted. a generic font family should be the last item in the list of font family names. the following keywords are defined: serif glyphs have finishing strokes, fl...
... emoji text: ✝♾. fangsong a particular style of chinese characters that are between serif-style song and cursive-style kai forms. this style is often used for government documents. this is some example fangsong text with the chinese characters for "fangsong" in traditional and simple forms, respectively: 仿宋體 仿宋体. valid family names font family names must either be given quoted as strings, or unquoted as a sequence of one or more identifiers. this means that punctuation characters and digits at the start of each token must be escaped in unquoted font family names. for example, the following declarations are valid: font-family: gill sans extrabold, sans-serif; font-family: "goudy bookletter 1911", sans-serif; the following declarations are invalid: font-family: goud...

hanging-punctuation - CSS: Cascading Style Sheets
e keyword values in the list below. two-value syntax uses one of the following: first together with any one of last, allow-end, or force-end last together with any one of first, allow-end, or force-end three-value syntax uses one of the following: first, allow-end, and last first, force-end, and last values none no character hangs. first an opening bracket or quote at the start of the first formatted line of an element hangs. last a closing bracket or quote at the end of the last formatted line of an element hangs. force-end a stop or comma at the end of a line hangs. allow-end a stop or comma at the end of a line hangs if it does not otherwise fit prior to justification. formal definition initial valuenoneapplies toall elementsinheritedyescomputed...
... hangs. force-end a stop or comma at the end of a line hangs. allow-end a stop or comma at the end of a line hangs if it does not otherwise fit prior to justification. formal definition initial valuenoneapplies toall elementsinheritedyescomputed valueas specifiedanimation typediscrete formal syntax none | [ first | [ force-end | allow-end ] | last ] examples setting opening and closing quotes to hang html <p>“lorem ipsum dolor sit amet, consectetur adipiscing elit. curabitur dignissim nunc mauris, et sollicitudin est scelerisque sed. praesent laoreet tortor massa, sit amet vulputate nulla pharetra ut.”</p> css p { hanging-punctuation: first last; margin: .5rem; } result specifications specification status comment css text module level 3the...

Using HTML sections and outlines - Developer guides
esting elements inside an article the <article> element can have other semantic elements such as headers, asides, and footers. this is often useful if you want to add css selectors to the class property of the element to style the document. <article> <header> <h1>how to become an mdn contributor</h1> </header> <p> do you want to help protect the web?.... </p> <aside> <blockquote> amazing quote from article </blockquote> </aside> <footer> <p> author info, publication date </p> </footer> </article> nesting articles and sections articles can be nested inside of sections and sections can be nested inside of articles. a book, for example, may be divided up into sections with related articles. each of these articles could contain sections of rel...
...lement <section> <h1>amazing mdn contributors</h1> <ul> <li><img src="link" alt="descriptive text"></li> <li><img src="link" alt="descriptive text"></li> <li><img src="link" alt="descriptive text"></li> </ul> </section> aside element the <aside> element defines related content that has a different placement than the main content. it is often used for call-outs, blockquotes, and definitions. the <aside> element is often used for sidebars containing extra, but relevant, information. <section> <h1>amazing mdn contributors</h1> <ul> <li><img src="link" alt="descriptive text"></li> <li><img src="link" alt="descriptive text"></li> <li><img src="link" alt="descriptive text"></li> </ul> <aside> <p>to get involved contact</p> </asi...

HTML elements reference - HTML: Hypertext Markup Language
specific semantic element to represent it — contained within an html document. text content use html text content elements to organize blocks or sections of content placed between the opening <body> and closing </body> tags. important for accessibility and seo, these elements identify the purpose or structure of that content. element description <blockquote> the html <blockquote> element (or html block quotation element) indicates that the enclosed text is an extended quotation. usually, this is rendered visually by indentation (see notes for how to change it). a url for the source of the quotation may be given using the cite attribute, while a text representation of the source can be given using the <cite> element. <dd> the html <d...
...ml <s> element renders text with a strikethrough, or a line through it. use the <s> element to represent things that are no longer relevant or no longer accurate. however, <s> is not appropriate when indicating document edits; for that, use the <del> and <ins> elements, as appropriate. <samp> the html sample element (<samp>) is used to enclose inline text which represents sample (or quoted) output from a computer program. <small> the html <small> element represents side-comments and small print, like copyright and legal text, independent of its styled presentation. by default, it renders text within it one font-size smaller, such as from small to x-small. <span> the html <span> element is a generic inline container for phrasing content, which does not i...

Forwarded - HTTP
in mind when deploying this header. header type request header forbidden header name no syntax forwarded: by=<identifier>;for=<identifier>;host=<host>;proto=<http|https> directives <identifier> an identifier disclosing the information that is altered or lost when using a proxy. this can be either: an ip address (v4 or v6, optionally with a port, and ipv6 quoted and enclosed in square brackets), an obfuscated identifier (such as "_hidden" or "_secret"), or "unknown" when the preceding entity is not known (and you still want to indicate that forwarding of the request was made). by=<identifier> the interface where the request came in to the proxy server. for=<identifier> the client that initiated the request and subsequent proxies in a chain o...
... x-forwarded-for: 123.34.567.89 forwarded: for=123.34.567.89 x-forwarded-for: 192.0.2.43, "[2001:db8:cafe::17]" forwarded: for=192.0.2.43, for="[2001:db8:cafe::17]" specifications specification title rfc 7239, section 4: forwarded forwarded http extension ...

Text formatting - JavaScript
ex 0, the next at index 1, and so on. the length of a string is the number of elements in it. you can create strings using string literals or string objects. caution: if you edit this page, do not include any characters above u+ffff, until mdn bug 857438 is fixed ( https://bugzilla.mozilla.org/show_bug.cgi?id=857438 ). string literals you can create simple strings using either single or double quotes: 'foo' "bar" more advanced strings can be created using escape sequences: hexadecimal escape sequences the number after \x is interpreted as a hexadecimal number. '\xa9' // "©" unicode escape sequences the unicode escape sequences require at least four hexadecimal digits following \u. '\u00a9' // "©" unicode code point escapes new in ecmascript 2015. with unicode code point escapes,...
... object repeated the given times. trim trims whitespace from the beginning and end of the string. multi-line template literals template literals are string literals allowing embedded expressions. you can use multi-line strings and string interpolation features with them. template literals are enclosed by the back-tick (` `) (grave accent) character instead of double or single quotes. template literals can contain place holders. these are indicated by the dollar sign and curly braces (${expression}). multi-lines any new line characters inserted in the source are part of the template literal. using normal strings, you would have to use the following syntax in order to get multi-line strings: console.log('string text line 1\n\ string text line 2'); // "string text line 1 //...

SyntaxError: illegal character - JavaScript
lid character (edge) syntaxerror: illegal character (firefox) syntaxerror: invalid or unexpected token (chrome) error type syntaxerror what went wrong? there is an invalid or unexpected token that doesn't belong at this position in the code. use an editor that supports syntax highlighting and carefully check your code against mismatches like a minus sign ( - ) versus a dash ( – ) or simple quotes ( " ) vs non-standard quotation marks ( “ ). examples mismatched characters some characters look similar, but will cause the parser to fail interpreting your code. famous examples of this are quotes, the minus or semicolon (greek questionmark (u+37e) looks same). “this looks like a string”; // syntaxerror: illegal character // “ and ” are not " but loo...
...or at least use a slightly different highlighting for it, but not all. when something like this happens to your code and you're not able to find the source of the problem, it's often best to just delete the problematic line and retype it. forgotten characters it's easy to forget a character here or there. var colors = ['#000', #333', '#666']; // syntaxerror: illegal character add the missing quote for '#333'. var colors = ['#000', '#333', '#666']; hidden characters when copy pasting code from external sources, there might be invalid characters. watch out! var foo = 'bar';​ // syntaxerror: illegal character when inspecting this code in an editor like vim, you can see that there is actually a zero-width space (zwsp) (u+200b) character. var foo = 'bar';​<200b> ...

SyntaxError: unterminated string literal - JavaScript
the javascript error "unterminated string literal" occurs when there is an unterminated string somewhere. string literals must be enclosed by single (') or double (") quotes. message syntaxerror: unterminated string constant (edge) syntaxerror: unterminated string literal (firefox) error type syntaxerror what went wrong? ...
... string literal" occurs when there is an unterminated string somewhere. string literals must be enclosed by single (') or double (") quotes. message syntaxerror: unterminated string constant (edge) syntaxerror: unterminated string literal (firefox) error type syntaxerror what went wrong? there is an unterminated string somewhere. string literals must be enclosed by single (') or double (") quotes. javascript makes no distinction between single-quoted strings and double-quoted strings. escape sequences work in strings created with either single or double quotes. to fix this error, check if: you have opening and closing quotes (single or double) for your string literal, you have escaped your string literal correctly, your string literal isn't split across multiple lines. examples m...

JSON - JavaScript
can't be called or constructed, and aside from its two method properties, it has no interesting functionality of its own. description javascript and json differences json is a syntax for serializing objects, arrays, numbers, strings, booleans, and null. it is based upon javascript syntax but is distinct from it: some javascript is not json. objects and arrays property names must be double-quoted strings; trailing commas are forbidden. numbers leading zeros are prohibited. a decimal point must be followed by at least one digit. nan and infinity are unsupported. any json text is a valid javascript expression... ...but only in javascript engines that have implemented the proposal to make all json text valid ecma-262. in engines that haven't implemented the proposal, u+2028 line separat...
...n json; but their use in these features in javascript string literals is a syntaxerror. consider this example where json.parse() parses the string as json and eval executes the string as javascript: let code = '"\u2028\u2029"' json.parse(code) // evaluates to "\u2028\u2029" in all engines eval(code) // throws a syntaxerror in old engines other differences include allowing only double-quoted strings and having no provisions for undefined or comments. for those who wish to use a more human-friendly configuration format based on json, there is json5, used by the babel compiler, and the more commonly used yaml. full json syntax the full json syntax is as follows: json = null or true or false or jsonnumber or jsonstring or jsonobject or jsonarray jsonnumber = - p...

MathML attribute reference - MathML
mented lineleading <mo>, <mspace> linethickness <mfrac> the thickness of the horizontal fraction line. unimplemented location <mscarries> unimplemented longdivstyle <mlongdiv> controls the style of the long division layout. lspace <mo>, <mpadded> the amount of space before the operator (see length for values and units). lquote <ms> the opening quote character (depends on dir) to enclose the content. the default value is "&quot;". mathbackground all the background color. you can use #rgb, #rrggbb and html color names. mathcolor all the text color. you can use #rgb, #rrggbb and html color names. mathsize <mi>, <mn>, <mo>, <ms>, <mtext> the size of the content. m...
...mtable>, <mtd>, <mtr> specifies the vertical alignment of table cells. rowlines <mtable> specifies table row borders. rowspacing <mtable> specifies the space between table rows. rowspan <mtd> a non-negative integer value that indicates on how many rows does the cell extend. rspace <mo> the amount of space after the operator. rquote <ms> the closing quote mark (depends on dir) to enclose the content. the default value is "&quot;". scriptlevel <mstyle> controls mostly the font-size. the higher the scriptlevel, the smaller the font size. scriptminsize <mstyle> specifies a minimum font size allowed due to changes in scriptlevel. scriptsizemultiplier <mstyle> specifies the multi...

test/assert - Archive of obsolete content
.notequal(1, 2, "test that one is not two"); parameters actual : object the actual result. expected : object the expected result. message : string optional message to log, providing extra information about the test. deepequal(actual, expected, message) tests that two objects have a deep equality relation. deep equality is defined in the commonjs specification for assert, item 7, which is quoted here: all identical values are equivalent, as determined by ===. if the expected value is a date object, the actual value is equivalent if it is also a date object that refers to the same time. other pairs that do not both pass typeof value == "object", equivalence is determined by ==. for all other object pairs, including array objects, equivalence is determined by having the same number...

Extension Versioning, Update and Compatibility - Archive of obsolete content
p for paragraphs ul and ol for lists. within lists use the usual li tag for each list item. within h1, h2, h3, p and li tags you may use: b or strong for bolder text i or em for italicized text formatting in firefox 4 and later from firefox 4 the restrictions are relaxed somewhat. the following tags are interpreted normally: h1, h2 and h3 for general headings p, div, pre and blockquote for block formatting ul, ol, li, dl, dt and dd for lists b, i, em, strong, u, q, sub, sup and code for text formatting br and hr for line breaking the head, style and script tags and any of their contents are completely stripped. other tags aren't included in the result but do have their contents displayed, so the following snippet: <span><q>text</q></span> would be rendered exactly the s...

Getting Started with Firefox Extensions - Archive of obsolete content
x extension? extensions add new functionality to mozilla applications such as firefox and thunderbird. they can add anything from a toolbar button to a completely new feature. they allow the application to be customized to fit the personal needs of each user if they need additional features, while keeping the applications small to download. taken from the extensions page. as described in the quoted text, an extension is a small application that adds something new to one or more mozilla applications. this tutorial focuses on extensions for firefox, but the same (or very similar) principles apply to creating extensions for other applications such as thunderbird, seamonkey, and flock. it is also worth noting that there are differences between the definition of extension and add-on. all exten...

An Interview With Douglas Bowman of Wired News - Archive of obsolete content
ts and some other third-party content prevent us from doing so. our engineers also faced a huge archive of content that wasn't entered into our cms with xhtml in mind. it's true that our stories exist in a database, separated from page templates and peripheral formatting. but writers, editors, and producers have been inserting stories into vignette for years sans closing paragraph (</p>) tags. unquoted attributes and uppercase html tags? we've got them in spades, and they're embedded in all past stories of the database. fortunately, our chief engineer was able to write some code that scraped through the database looking for errors like this which would invalidate our markup. we don't make any claims about past archived content, but we've taken many efforts to make sure even stories from a few ...

Index - Archive of obsolete content
owsers. you can use the more general proxy object instead. 2074 reflect.enumerate() ecmascript 2015, javascript, method, obsolete, reflect the static reflect.enumerate() method used to return an iterator with the enumerable own and inherited properties of the target object, but has been removed in ecmascript 2016 and is deprecated in browsers. 2075 string.prototype.quote() javascript, method, obsolete, prototype, reference, string the non-standard quote() method returns a copy of the string, replacing various special characters in the string with their escape sequences and wrapping the result in double-quotes ("). 2076 arguments.caller functions, javascript, obsolete, property, arguments the obsolete arguments.caller property used t...

Inner-browsing extending the browser navigation paradigm - Archive of obsolete content
integrated way, much like a client mail app; and a stock ticker that spools the information across the web page. see the table below for a description of how applications like this exemplify inner-browsing and how they might be implemented using the inner-browsing approach. some examples: web page with ticker it is common to see web pages with a ticker element, often used to rotate news or stock quotes updates. a simple ticker element implemented in dhtml statically includes the data in the page. if the data changes, it will not update unless you reload the web page. this article includes a ticker example demonstrating that the inner-browsing model can be used to dynamically request new data from the server side and provide updates to the ticker. spell check suppose you have a web publishing s...

JXON - Archive of obsolete content
{ "name": "xml", "encoding": "ascii" } numbers are recognized (integers and decimals): <root><age>12</age><height>1.73</height></root> becomes { "age": 12, "height": 1.73 } booleans are recognized case insensitive: <root><checked>true</checked><answer>false</answer></root> becomes { "checked": true, "answer": false } strings are escaped: <root>quote: &quot; new-line: </root> becomes "quote: \" new-line:\n" empty elements will become null: <root><nil/><empty></empty></root> becomes { "nil": null, "empty": null } if all sibling elements have the same name, they become an array <root><item>1</item><item>2</item><item>three</item></root> becomes [1, 2, "three"] mixed mode text-nodes, comments and...

List of Mozilla-Based Applications - Archive of obsolete content
blog post about projects wine implementation of the windows api uses mozilla spidermonkey and the gecko activex control worksmart.net suite of web-based workplace apps uses prism wxwebconnect web browser control library wyzo browser xb browser anonymous web browser xbusiness create and send branded invoices, quotes or estimates xdf billing and quotes software xiphos bible study software xmldbeditor database editor xpud linux desktop xpud: linux with an xul interface, 10 second boot time xrap xulrunner application packager xul daim image tool xul explorer development tool xulrunner application ...

No Proxy For configuration - Archive of obsolete content
ve to the ip address range (10.0.0.0/8 is not "no proxy for intranet hostnames") optional - port-specific (optional) ":" + port number "<filter>:81" only black-lists port. only applies to one port (no support for ranges and/or multiple ports). port-only filters ":80" or "*:80" are not supported. all non-fqdn hosts, such as intranet hosts the string "<local>" (without quotes) "<local>" bypasses the proxy for all hostnames which have no periods in them. for example: "https://mycompanyintranet/" formats that are not accepted example domain filters with interior wildcards www.*.com ip address string prefixes 127. or 10.0.* ip addresses with wildcards in quads 10.*.*.* preferences name netw...

Source Navigator - Archive of obsolete content
with it, you can edit your source code, display relationships between classes and functions and members, and display call trees. you can also build your projects, either with your own makefile, or by using source-navigator's build system to automatically generate a makefile. ...

Automatically Handle Failed Asserts in Debug Builds - Archive of obsolete content
1.11.4/mozilla) if you have a dword in hkcu\software\mozilla.org\windbgdlg\ named "d:/cvs-1.11.5/mozilla/content/xul/content/src/nsxulelement.cpp," (with the comma - matches are whole-word only) and value 0x5, the assert would automatically be ignored. if you also had a dword named "3173", it would have no effect here because the handler stops comparing values at the first match. note that double quotes which delimit an item (") are ignored in value names and the assertion string, so "silly" and silly will both be matched by a value named silly. "silly", will only be matched by a value named "silly", since the quotes are internal to the string. ...

Editor Embedding Guide - Archive of obsolete content
below is the sequence of steps that need to be followed for the same: 1. get the nsicommandmanager from the nsiwebbrowser using do_getinterface: nscomptr<nsicommandmanager> commandmanager; nsiwebbrowser->do_getinterface(getter_addrefs(commandmgr)); 2. call a command -...

Makefile.mozextension.2 - Archive of obsolete content
tension development - mozillazine knowledge base (2008). the same goes for this slight makefile rework here. ...

Table Layout Regression Tests - Archive of obsolete content
++webshell == 1 ++domwindow == 1 ++webshell == 2 ++domwindow == 2 note: s...

URIs and URLs - Archive of obsolete content
al naming systems. escaping to be able to parse an url safely it is sometimes necessary to "escape" certain characters, to hide them from the parser. an escaped character is encoded as a character triplet, consisting of the percent character "%" followed by the two hexadecimal digits representing the octet code. for example, "%20" is the escaped encoding for the us-ascii space character. another quote from rfc 2396: a uri is always in an "escaped" form, since escaping or unescaping a completed uri might change its semantics. normally, the only time escape encodings can safely be made is when the uri is being created from its component parts; each component may have its own set of characters that are reserved, so only the mechanism responsible for generating or interpreting that component can...

List of commands - Archive of obsolete content
ious cmd_wordnext cmd_selectwordprevious cmd_selectwordnext cmd_beginline cmd_endline cmd_selectbeginline cmd_selectendline cmd_selectlineprevious cmd_selectlinenext cmd_selectpageprevious cmd_selectpagenext cmd_selectmovetop cmd_selectmovebottom editor commands (legal when the focus is anywhere where you can type text): cmd_paste - paste a selection from the clipboard cmd_pastequote cmd_delete cmd_deletecharbackward cmd_deletecharforward cmd_deletewordbackward cmd_deletewordforward cmd_deletetobeginningofline cmd_deletetoendofline cmd_scrolltop cmd_scrollbottom cmd_movetop cmd_movebottom cmd_selecttop cmd_selectbottom cmd_linenext cmd_lineprevious cmd_selectlinenext cmd_selectlineprevious cmd_charprevious cmd_charnext cmd_selectcharprevious cmd_selectcha...

Namespaces - Archive of obsolete content
in addition to this document, see namespaces crash course. xml namespaces provide a way to distinguish duplicate element and attribute names. duplicates element and attribute names can occur when an xml document contains elements and attributes from two or more different xml schemas (or dtds). to quote wikipedia: "in general, a namespace is an abstract container providing context for the items ... it holds and allows disambiguation of items having the same name." if you are familiar with c++ namespaces, java packages, perl packages, or python module importing, you are already familiar with the namespace concept. an xml namespace is identified by an unique name (called a uri, not a url, even though it can look like a url). an uri is any string, although most people choose a url-based uri becaus...

Adding HTML Elements - Archive of obsolete content
title="find files" orient="horizontal" xmlns:html="http://www.w3.org/1999/xhtml" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> then, you can use html tags as you would normally, keeping in mind the following: you must add a html: prefix to the beginning of each tag, assuming you declared the html namespace as above. the tags must be entered in lowercase. "quotes" must be placed around all attribute values. xml requires a trailing slash at the end of tags that have no content. this may be clearer from the examples below. using html elements you can use any html tag although some such as head and body are not really useful. some examples of using html elements are shown below. <html:img src="banner.jpg"/> <html:input type="checkbox" value="true"/> <ht...

Introduction - Archive of obsolete content
es to be installed without having to write a lot of complex code. what do i need to know to use this tutorial? you should have an understanding of html and at least a basic understanding of xml and css. here are some guidelines to keep in mind: xul elements and attributes should all be entered in lowercase as xml is case-sensitive (unlike html). attribute values in xul must be placed inside quotes, even if they are numbers. xul files are usually split into four files, one each for the layout and elements, for style declarations, for entity declarations (used for localization) and for scripts. in addition, you may have extra files for images or for platform specific data. xul is supported in mozilla and browsers that are also based upon on the gecko engine, such as netscape 6 or later a...

Keyboard Shortcuts - Archive of obsolete content
vk_subtract vk_decimal vk_divide vk_f1 vk_f2 vk_f3 vk_f4 vk_f5 vk_f6 vk_f7 vk_f8 vk_f9 vk_f10 vk_f11 vk_f12 vk_f13 vk_f14 vk_f15 vk_f16 vk_f17 vk_f18 vk_f19 vk_f20 vk_f21 vk_f22 vk_f23 vk_f24 vk_num_lock vk_scroll_lock vk_comma vk_period vk_slash vk_back_quote vk_open_bracket vk_back_slash vk_close_bracket vk_quote vk_help for example, to create a shortcut that is activated when the user presses alt and f5, do the following: <keyset> <key id="test-key" modifiers="alt" keycode="vk_f5"/> </keyset> the example below demonstrates some more keyboard shortcuts: <keyset> <key id="copy-key" modifiers="ac...

XML - Archive of obsolete content
ax, and in particular about these four cardinal rules of xul: all events and attributes must be written in lowercase. unlike html, xul is very sensitive to case. all of the events and attributes -- even the javascript event listeners normally formatted in the javascript world with uppercase verbs (e.g., onclick, onload) -- must be lowercase or they are invalid. all strings must be double quoted. all of the values for all of the attributes declared in xul are strings. when an attribute is assigned a value (e.g., flex="1" or "onload='dointerestingstartupthing()'") that value must be double-quoted. every xul widget must use close tags to be well-formed. html allows some elements, such as <br> and <hr>, to be neither closed nor matched with a closing element. in xul, elements must e...

application/http-index-format specification - Archive of obsolete content
associated column of data. tokens may not contain spaces. any illegal characters must be escaped via the url escaping syntax defined by rfc 1738. note that multiple 200 lines override previous 200 lines. 201 data whose definition stems from a prior 200 line. a valid 201 line consists of one or more white space separated tokens that represent data described by a previous 200 line. tokens may be quoted or unquoted. unquoted tokens may not contain white space. quoted tokens are terminated by the next quote but may not contain carrage returns or new lines. any illegal characters must be escaped via the url escaping syntax defined by rfc 1738. note that a 201 line encountered before a 200 line should be ignored. 300 a url pointing to the directory represented by the index if there is one. a va...

2006-10-06 - Archive of obsolete content
nager, however, testing is required before release can be issued. hence, they are looking for a mac user to test out the new features by building a mac.rdf file with all of the various .mac account properties mentioned in the document here. discussions is thunderbird using a valid w3c coding? peter lairo requested someone who are knowledgeable in w3c standards to confirm if the use of <blockquote type="cite"> is valid w3c code. q & a q: walt experienced an unusual behaviour in his build and wanted to perform an experiment to figure out the problem, but he couldn't find the mozilla.org's config file. a: robert helmer pointed out the mozilla.org's config file could be found here and to look for -->mozconfig<---------------------------------------- -->end mozconfig<---------------------...

Sunbird Theme Tutorial - Archive of obsolete content
change the next six lines to describe your theme. ensure that the internal name is a single word. note: if your theme is for a version of sunbird later than 0.4, then also change the maxversion. save the file. registering your theme to register your theme, create a plain text file named <tt>chrome.manifest</tt>. copy and paste the conten...

-ms-filter - Archive of obsolete content
r background-image and related properties gradient background-image: linear-gradient() dropshadow text-shadow or box-shadow matrix transform, transform-origin in windows internet explorer 8, the -ms-filter attribute is an extension to css, and can be used as a synonym for filter in ie8 standards mode. when you use -ms-filter, enclose the progid in single quotes (') or double quotes ("). use commas (,) to separate multiple values, as shown in the examples section. an object must have layout for the filter to render. a simple way to accomplish this is to give the element a specified height and width, or both. the shadow filter can be applied to the <img> object by setting the filter on the image's parent container. the filter mechanism is extensible a...

Processing XML with E4X - Archive of obsolete content
create markup dynamically. with e4x it is easy to embed dynamic values in markup. variables and expressions can be used to create attribute values by simply wrapping them with braces ({}) and omitting quotation marks that would normally go around an attribute value, as the following example illustrates: var a = 2; var b = <foo bar={a}>"hi"</foo>; upon execution the variable is evaluated and quotes are automatically added where appropriate. the preceding example would result in an xml object which looks like this: <foo bar="2">"hi"</foo>. in attribute substitution, quotation marks are escaped as &quot; while apostrophes are handled normally. var b = 'he said "don\'t go there."'; var el = <foo a={b}/>; alert(el.toxmlstring()); // gives: <foo a="he said &quot;don't go there.&quot;"/> les...

Archived JavaScript Reference - Archive of obsolete content
od was used to remove observers set by object.observe(), but has been deprecated and removed from browsers. you can use the more general proxy object instead.reflect.enumerate()the static reflect.enumerate() method used to return an iterator with the enumerable own and inherited properties of the target object, but has been removed in ecmascript 2016 and is deprecated in browsers.string.prototype.quote()the non-standard quote() method returns a copy of the string, replacing various special characters in the string with their escape sequences and wrapping the result in double-quotes ("). ...

Server-Side JavaScript - Archive of obsolete content
useful and applicable on the server-side again -- with performance in the same range as popular server-side environments like php and ruby on rails. now, with tracemonkey available, javascript (both client side and server-side) can see 20x to 40x speed improvements according to brendan eich, mozilla cto and creator of javascript. server-side javascript is another way in which, as this article quotes eich, "mozilla wants to 'get people thinking about javascript as a more general-purpose language' and show them that 'it really is a platform for writing full applications.'" many vendors today are embedding mozilla rhino or mozilla spidermonkey into web server environments. some, like aptana with the open source jaxer server actually embed the entire mozilla firefox browser engine (including s...

Using XForms and PHP - Archive of obsolete content
oduction a few tips on using xforms and php together. returning xml data to either serve a page (with xforms in it) or to generate data used as instance data for xforms, the page needs to be served as xml, for example application/xhtml+xml. to do that, you need to use the header() php function: <?php header("content-type: application/xhtml+xml; charset=utf-8"); ... ?> but remember this (quote from php documentation): remember that header() must be called before any actual output is sent, either by normal html tags, blank lines in a file, or from php. it is a very common error to read code with include(), or require(), functions, or another file access function, and have spaces or empty lines that are output before header() is called. the same problem exists when using a single php/ht...

Correctly Using Titles With External Stylesheets - Archive of obsolete content
nate stylesheet is selected, then the preferred stylesheet is dropped in favor of the user-selected alternate stylesheet. this is different than persistent stylesheets, which are always applied to a document, whether an alternate stylesheet has been selected or not. recommendations authors should make sure that any stylesheet which should always be applied is persistent instead of preferred. to quote from html 4.01 specification, section 14.3.1: to make a style sheet persistent, set the rel attribute to "stylesheet" and don't set the title attribute. to make a style sheet preferred, set the rel attribute to "stylesheet" and name the style sheet with the title attribute. related links html 4.01 specification, section 14.3: external style sheets original document information auth...

Mozilla's DOCTYPE sniffing - Archive of obsolete content
g this list: w3c html validator, htmlhelp html validator. the absence of a doctype. an xml declaration (pseudo-pi) without a doctype (in other words, ignore the xml declaration and use the doctype). in 1.0 and 1.1alpha and earlier (but not in 1.0.1 or 1.1beta), the presence of an xml declaration triggered full standards mode. a doctype declaration that cannot be understood (e.g., no matching quote). the system identifier "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd" (before 1.5b and 1.4.2, this triggered almost standards mode). the public identifier "-//w3c//dtd html 4.01 transitional//en", without a system identifier. the public identifier "-//w3c//dtd html 4.01 frameset//en", without a system identifier. the public identifier "-//w3c//dtd html 4.0 transitional//en" (se...

SQL Injection - MDN Web Docs Glossary: Definitions of Web-related terms
r operator, the value ( false or true ) is true, so authentication bypasses successfully. just due to a simple string (magical string) the entire database is compromised. how to prevent before executing the queries for the user credentials, make some changes like the following: $id = $_get['id'] (1) $id = stripslashes($id) (2) $id = mysql_real_escape_string($id) so due to (1) each single quote (') in the input string is replaced with double quotes ("), and due to (2) before every (') it adds (/). the revised magical string fails to bypass the authentication, and your database stays secure. learn more general knowledge sql injection on wikipedia explanation of sql injection on owasp (open web application security project) ...

Unicode - MDN Web Docs Glossary: Definitions of Web-related terms
fficult and error-prone to mix languages in the same data. for example, one character set would store japanese characters, and another would store the arabic alphabet. if it was not clearly marked which parts of the data were in which character set, other programs and computers would display the text incorrectly, or damage it during processing. if you've ever seen text where characters like curly quotes (“”) were replaced with gibberish like £, then you've seen this problem, known as mojibake. the most common unicode character encoding on the web is utf-8. other encodings exist, like utf-16 or the obsolete ucs-2, but utf-8 is recommended. learn more unicode on wikipedia the unicode standard: a technical introduction ...

Cascade and inheritance - Learn web development
property values the css shorthand property all can be used to apply one of these inheritance values to (almost) all properties at once. its value can be any one of the inheritance values (inherit, initial, unset, or revert). it's a convenient way to undo changes made to styles so that you can get back to a known starting point before beginning new changes. in the below example we have two blockquotes. the first has styling applied to the blockquote element itself, the second has a class applied to the blockquote which sets the value of all to unset. try setting the value of all to some of the other available values and observe what the difference is. understanding the cascade we now understand why a paragraph nested deep in the structure of your html is the same color as the css applie...

Organizing your CSS - Learn web development
ss you do something special with that element. you will typically have rules set up for: body p h1, h2, h3, h4, h5 ul and ol the table properties links in this section of the stylesheet we are providing default styling for the type on the site, setting up a default style for data tables and lists and so on. /* || general styles */ body { ... } h1, h2, h3, h4 { ... } ul { ... } blockquote { ... } after this section we could define a few utility classes, for example a class that removes the default list style for lists we're going to display as flex items or in some other way. if you have a few things you know you will want to apply to lots of different elements, they can come in this section. /* || utilities */ .nobullets { list-style: none; margin: 0; padding: 0; } ...

Attribute selectors - Learn web development
ample href), or on various different matches against the value of the attribute. selector example description [attr] a[title] matches elements with an attr attribute (whose name is the value in square brackets). [attr=value] a[href="https://example.com"] matches elements with an attr attribute whose value is exactly value — the string inside the quotes. [attr~=value] p[class~="special"] matches elements with an attr attribute whose value is exactly value, or contains value in its (space separated) list of values. [attr|=value] div[lang|="zh"] matches elements with an attr attribute whose value is exactly value or begins with value immediately followed by a hyphen. in the example below you can...

Fundamental text and font styling - Learn web development
if none of the listed fonts are available, the browser can at least provide something approximately suitable. to emphasise this point, paragraphs are given the browser's default serif font if no other option is available — which is usually times new roman — this is no good for a sans-serif font! note: font names that have more than one word — like trebuchet ms — need to be surrounded by quotes, for example "trebuchet ms". a font-family example let's add to our previous example, giving the paragraphs a sans-serif font: p { color: red; font-family: helvetica, arial, sans-serif; } this gives us the following result: <h1>tommy the cat</h1> <p>well i remember it as though it were a meal ago...</p> <p>said tommy the cat as he reeled back to clear whatever foreign matter may ha...

Dealing with files - Learn web development
to tell the html where the image is. the image is inside the images directory, which is in the same directory as index.html. to walk down the file structure from index.html to our image, the file path we'd need is images/your-image-filename. for example, our image is called firefox-icon.png, so the file path is images/firefox-icon.png. insert the file path into your html code between the double quote marks of the src="" code. save your html file, then load it in your web browser (double-click the file). you should see your new webpage displaying your image! some general rules for file paths: to link to a target file in the same directory as the invoking html file, just use the filename, e.g. my-image.jpg. to reference a file in a subdirectory, write the directory name in front of th...

HTML basics - Learn web development
ute should always have the following: a space between it and the element name (or the previous attribute, if the element already has one or more attributes). the attribute name followed by an equal sign. the attribute value wrapped by opening and closing quotation marks. note: simple attribute values that don't contain ascii whitespace (or any of the characters " ' ` = < > ) can remain unquoted, but it is recommended that you quote all attribute values, as it makes the code more consistent and understandable. nesting elements you can put elements inside other elements too — this is called nesting. if we wanted to state that our cat is very grumpy, we could wrap the word "very" in a <strong> element, which means that the word is to be strongly emphasized: <p>my cat is <strong>very...

HTML Cheatsheet - Learn web development
ge. they also take up a full line of a webpage; they do not fit together side-by-side. instead, they stack like paragraphs in an essay or toy blocks in a tower. usage code snippet result a simple paragraph <p>i'm a paragraph</p> <p>i'm another paragraph</p> i'm a paragraph i'm another paragraph an extended quotation <blockquote>the blockquote element indicates an extended quotation.</blockquote> the blockquote element indicates an extended quotation. aditional information <details><summary>html cheatsheet</summary><p>inline elements</p><p>block elements</p></details> html cheatsheet inline elements block elements an unordered list <ul> <li>i'm an item</...

Using data attributes - Learn web development
data attributes can also be stored to contain information that is constantly changing, like scores in a game. using the css selectors and javascript access here this allows you to build some nifty effects without having to write your own display routines. see this screencast for an example using generated content and css transitions (jsbin example). data values are strings. number values must be quoted in the selector for the styling to take effect. issues do not store content that should be visible and accessible in data attributes, because assistive technology may not access them. in addition, search crawlers may not index data attributes' values. the main issues to consider are internet explorer support and performance. internet explorer 11+ provides support for the standard, but all ear...

Document and website structure - Learn web development
e two features better if they are separate. main content: a big area in the center that contains most of the unique content of a given webpage, for example, the video you want to watch, or the main story you're reading, or the map you want to view, or the news headlines, etc. this is the one part of the website that definitely will vary from page to page! sidebar: some peripheral info, links, quotes, ads, etc. usually, this is contextual to what is contained in the main content (for example on a news article page, the sidebar might contain the author's bio, or links to related articles) but there are also cases where you'll find some recurring elements like a secondary navigation system. footer: a strip across the bottom of the page that generally contains fine print, copyright notices, o...

Marking up a letter - Learn web development
ulae, and the numbers 103 and 104 (they should be 10 to the power of 3 and 4, respectively). try to mark up at least two appropriate words in the text with strong importance/emphasis. there are two places where the letter should have a hyperlink. add appropriate links with titles. for the location that the links point to, you may use http://example.com as the url. mark up the university motto quote and citation with appropriate elements. the head of the document the character set of the document should be set as utf-8 using the appropriate meta tag. the author of the letter should be specified in an appropriate meta tag. the provided css should be included inside an appropriate tag. hints and tips use the w3c html validator to validate your html. award yourself bonus points if i...

Test your skills: Advanced HTML text - Learn web development
nt you to turn the provided animals and their definitions into a description list. try updating the live code below to recreate the finished example: download the starting point for this task to work in your own editor or in an online editor. advanced html text 2 in this task we want you to add some semantics to the provided html as follows: turn the second paragraph into a block-level quote, and semantically indicate that the quote is taken from accessibility. semantically mark up "html" and "css" as acronyms, providing expansions as tooltips. semantically associate machine-readable dates with the dates in the text. use subscript and superscript to provide correct semantics for the chemical formulae and dates, and make them display correctly. try updating the live code below to...

From object to iframe — other embedding technologies - Learn web development
on wikimedia commons). never display content on your webpage unless you own it or the owners have given you written, unequivocal permission. penalties for copyright infringement are severe. again, you can never be too cautious. if the content is licensed, you must obey the license terms. for example, the content on mdn is licensed under cc-by-sa. that means, you must credit us properly when you quote our content, even if you make substantial changes. use https https is the encrypted version of http. you should serve your websites using https whenever possible: https reduces the chance that remote content has been tampered with in transit, https prevents embedded content from accessing content in your parent document, and vice versa. using https requires a security certificate, which ...

Making decisions in your code — conditionals - Learn web development
, white, black, purple, yellow, or psychedelic. note that the values are case sensitive, and should equal the <option> element value values rather than the visual labels. for each case, the update() function should be run, and be passed two color values, the first one for the background color, and the second one for the text color. remember that color values are strings, so need to be wrapped in quotes. if you make a mistake, you can always reset the example with the "reset" button. if you get really stuck, press "show solution" to see a solution. playable code 2 <h2>live output</h2> <div class="output" style="height: 300px;"> <label for="theme">select theme: </label> <select id="theme"> <option value="white">white</option> <option value="black">black</option> <option val...

Basic math in JavaScript — numbers and operators - Learn web development
rselves with the basic syntax we need. enter the commands listed below into your developer tools javascript console. first of all, let's declare a couple of variables and initialize them with an integer and a float, respectively, then type the variable names back in to check that everything is in order: let myint = 5; let myfloat = 6.667; myint; myfloat; number values are typed in without quote marks — try declaring and initializing a couple more variables containing numbers before you move on. now let's check that both our original variables are of the same datatype. there is an operator called typeof in javascript that does this. enter the below two lines as shown: typeof myint; typeof myfloat; you should get "number" returned in both cases — this makes things a lot easier fo...

What went wrong? Troubleshooting JavaScript - Learn web development
easy — it generally means that you've missed one of your curly braces from a function or conditional structure. we got this error by deleting one of the closing curly braces near the bottom of the checkguess() function. syntaxerror: expected expression, got 'string' or syntaxerror: unterminated string literal these errors generally mean that you've left off a string value's opening or closing quote mark. in the first error above, string would be replaced with the unexpected character(s) that the browser found instead of a quote mark at the start of a string. the second error means that the string has not been ended with a quote mark. for all of these errors, think about how we tackled the examples we looked at in the walkthrough. when an error arises, look at the line number you are given,...

JavaScript First Steps - Learn web development
ow we can combine operators and other features to successfully manipulate numbers to do our bidding. handling text — strings in javascript next we'll turn our attention to strings — this is what pieces of text are called in programming. in this article we'll look at all the common things that you really ought to know about strings when learning javascript, such as creating strings, escaping quotes in string, and joining them together. useful string methods now we've looked at the very basics of strings, let's move up a gear and start thinking about what useful operations we can do on strings with built-in methods, such as finding the length of a text string, joining and splitting strings, substituting one character in a string for another, and more. arrays in the final article of this...

Introducing a complete toolchain - Learn web development
often than not contain configuration options expressed in a json structure (though our tools and many others also support yaml, which you can switch to if that's your preferred flavour of configuration file). first of all, create a file in the root of your will-it-miss directory called .prettierrc.json. to configure prettier, give .prettierrc.json the following contents: { "singlequote": true, "trailingcomma": "es5" } with these settings, when prettier formats javascript for you it will use single quotes for all your quoted values, and it won't use trailing commas (a newer feature of ecmascript that will cause errors in older browsers). you can find more about configuring prettier in its documentation. next up, we’ll configure eslint — create another file in the ...

Creating reftest-based unit tests
ants a regression test to show that 2 * 2 continues to be calculated to be 4, not something similar to but not quite exactly 4. but an operating system does change with time. it is not invariant. and a browser may change the visual effect produced by a tag while still being compliant with relevant standards. for example, the html 4.01 specification at the w3c specifies that text inside of a <blockquote> will be indented, but it does not specify the number of pixels of the indentation. if a browser changes the depth of the indenting and the visual construct is tested against an invariant, the test would appear to fail. but the test should not fail, unless the "<blockquote>" element did not cause any indentation at all. if a regression test harness has false failures, it makes the harness not tru...

Capturing a minidump
e menu, select debug → go, and firefox should start. if the debugger spits out some text right away and firefox doesn't come up, select debug → go again. when the program is about to crash, windbg will spit out more data, and the prompt at the bottom will change from saying "*busy*" to having a number in it. at this point, you should type ".dump /ma c:\temp\firefoxcrash.dmp" -- without the quotes, but don't forget the dot at the beginning. once it completes, which can take a fair while, you will have a very large file at c:\temp\firefoxcrash.dmp that can be used to help debug your problem. file size will depend on this size of firefox running in your enviroment, which could several gb. ask in the relevant bug or thread how best to share this very large file! capturing a minidump: app...

Debugging on Windows
ne options, go to project > settings..., debug tab and select general from the drop down list. "program arguments:" should show the options. some common options would be the url of the file you want the browser to open as soon as it starts, starting the profile manager, or selecting a profile. you can also redirect the console output to a file (by adding "> filename.txt" for example, without the quotes). in vc 7 and 8 this option is called project > properties > debugging > command arguments. vc 8 also allows you to set environment variables there. setting breakpoints in dlls which are not yet loaded in memory vc++ 6.0: go to project > settings..., debug tab and select "additional dlls" from the drop down list. check "locate additional dlls" option. for each dll, click the "new" button whic...

pymake
or example: instead of make -f client.mk to start a build, you would type python build/pymake/make.py -f client.mk. to run tests instead of typing make mochitest-plain in the object directory, you would type python ../build/pymake/make.py mochitest-plain. alternately, if you would like to simply type in pymake -f client.mk from within the mingw32 shell. while in the shell type cd ~ (without quotes). type touch .profile using any appropriate text editor open .profile and add the following line in the file (assuming your mozilla-central is at c:/mozilla-central, if not, adjust your path accordingly.) alias pymake=c:/mozilla-central/build/pymake/make.py save your .profile edit and close the shell, then restart the shell. try typing just pymake into the shell and press enter. this shou...

Gecko Logging
)); } } if (i != 10) { moz_log(slogger, loglevel::error, ("i should be 10!")); } } enabling logging the log level for a module is controlled by setting an environment variable before launching the application. it can also be adjusted by setting prefs. by default all logging output is disabled. set moz_log="example_logger:3" in the windows command prompt (cmd.exe), don't use quotes: set moz_log=example_logger:3 if you want this on geckoview example, use the following adb command to launch process: adb shell am start -n org.mozilla.geckoview_example/.geckoviewactivity --es env0 "moz_log=example_logger:3" there are special module names to change logging behavior. you can specify one or more special module names without logging level. special module name ...

Commenting IDL for better documentation
the cookie monster is. * 0 means "stuffed to the brim with cookies" and 100 means "i'm so empty of * cookies! feed me now!" */ attribute integer hungerlevel; /** * feeds a cookie to the cookie monster. * @param cookietoeat the nsicookie to eat. */ void eatcookie(in nsicookie cookietoeat); /** * sings the song "c is for cookie." */ void sing(); /** * returns a string containing a funny quote the cookie monster might say. * * @param number the saying number to return. * * @returns an astring containing the requested funny quote. if the specified * quote number is invalid, an exception is thrown. * * @throws ns_error_failure unable to locate the requested quote. */ astring getfunnysaying(in integer number); /** * says something appreciative of the tastiness of the cookie in t...

SVG Guidelines
ombat this is to first run svg files through a linter such as svgo (see the tools section below). however, when authoring svgs by hand here are some best practices to help keep them lightweight. these rules are based on some real examples seen in mozilla's code. ...

Mozilla Content Localized in Your Language
ies of click-through) where detailed instruction is given. ellipsis should not be used as a way to solve truncation issue. focus on making the ui short and precise. the sequence of the sentence structure in another language may not translate well, when a sentence is half finished as such. add fluency :: spelling, punctuation, capitalization, diacritics, typography, unpaired brackets or quote marks, whitespace. include a note to look for, reference, and adhere to a national standard for the language, where possible. add style :: register, variants/slang, awkward, company style (branding guidelines), inconsistent style, third-party style, unidiomatic (steps to define your approach to culture-specific & locale-specific references) ...

Localizing with Koala
a new localization, you may not have a remote repository set up yet. it is still recommended to use mercurial locally to version your local files. just type a single dot (".") in the url field to enable mercurial support in koala. branch: default. revision: leave empty. user: type your name and your e-mail address in the form: "firstname lastname <me@example.com>" (be sure to type the wrapping quotes: "") note that you no longer have to edit the location now, it automatically fills in when you check the "mercurial" checkbox (e.g. "c:\mozilla\l10n\locale\x-testing\3.6" if you enabled mercurial (recommended), koala will ask you if you wish to clone the remote repository. click "ok" (even if you're creating a new localization and there is no remote repository). existing localizations: if koa...

SVN for Localizers
ropriate mozilla svn repository by entering the following command: svn commit -m "minor modifications for firefox [version #] beta page for [your locale]" the svn commit command will commit your changes directly to the mozilla svn repositories. since you are writing to the repository here, you will be asked for your ldap login credentials. the -m parameter followed by some text within double quotes (") will be pushed along with your changes. within the double quotes you should briefly describe your changes so that everyone can see what you contributed. you can also double check your changes using the viewvc interface. after you commit your changes, wait 15 minutes and check the staging website for your locale. your recent changes should now be visible online. you will have the chance t...

Midas
e a number this command will set the fontsize for a selection or at the insertion point if there is no selection. the given number is such as would be used in the "size" attribute of the font tag. forecolor a color code this command will set the text color of the selection or at the insertion point. formatblock h1, h2, h3, h4, h5, h6, p, div, address, blockquote (more?) the selection surrounded by the given block element. heading h1, h2, h3, h4, h5, h6 selected block will be formatted as the given type of heading. hilitecolor a color code this command will set the hilite color of the selection or at the insertion point. it only works with stylewithcss enabled. increasefontsize this command will add a <big>...

Certificate functions
3.2 and later cert_newtempcertificate mxr 3.12 and later cert_nicknamestringsfromcertlist mxr 3.4 and later cert_opencertdbfilename mxr 3.2 and later cert_ocspcachesettings mxr 3.11.7 and later cert_pkixverifycert mxr 3.12 and later cert_removecertlistnode mxr 3.6 and later cert_rfc1485_escapeandquote mxr 3.2 and later cert_savesmimeprofile mxr 3.2 and later cert_setsloptime mxr 3.2 and later cert_setocspfailuremode mxr 3.11.7 and later cert_setocsptimeout mxr 3.12 and later cert_setusepkixforvalidation mxr 3.12 and later cert_startcertextensions mxr 3.5 and later cert_startcertificatereque...

NSS 3.44 release notes
messages after async server authentication break when using record layer separation 1521578 - x25519 support in pk11pars.c 1540205 - freebl build fails with -dnss_disable_chachapoly 1532312 - post-handshake auth doesn't interoperate with openssl 1542741 - certutil -f crashes with segmentation fault 1546925 - allow preceding text in try comment 1534468 - expose chacha20 primitive 1418944 - quote cc/cxx variables passed to nspr 1543545 - allow to build nss as a static library 1487597 - early data that arrives before the handshake completes can be read afterwards 1548398 - freebl_gtest not building on linux/mac 1548722 - fix some coverity warnings 1540652 - softoken/sdb.c: logically dead code 1549413 - android log lib is not included in build 1537927 - ipsec usage is too restrictive...

nss tech note2
ctivity between nss and a specified pkcs #11 module. it works by inserting a special set of entry points between nss and the module. to enable the module logger, you must set the environment variable nss_debug_pkcs11_module to the name of the target module. for example, to log the softoken, use: nss_debug_pkcs11_module="nss internal pkcs #11 module" note: in the command prompt on windows, do not quote the name of the target module, otherwise the quotes are considered part of the name. for example, to log the softoken on windows, use: set nss_debug_pkcs11_module=nss internal pkcs #11 module the logger is available by default in debug builds. for optimized builds, nss must be built with the variable debug_pkcs11 set. modes of operation the logger has several modes of operation: 1. only di...

NSS functions
3.2 and later cert_newtempcertificate mxr 3.12 and later cert_nicknamestringsfromcertlist mxr 3.4 and later cert_opencertdbfilename mxr 3.2 and later cert_ocspcachesettings mxr 3.11.7 and later cert_pkixverifycert mxr 3.12 and later cert_removecertlistnode mxr 3.6 and later cert_rfc1485_escapeandquote mxr 3.2 and later cert_savesmimeprofile mxr 3.2 and later cert_setsloptime mxr 3.2 and later cert_setocspfailuremode mxr 3.11.7 and later cert_setocsptimeout mxr 3.12 and later cert_setusepkixforvalidation mxr 3.12 and later cert_startcertextensions mxr 3.5 and later cert_startcertificatereque...

NSS tools : modutil
} } script grammar the script is basic java, allowing lists, key-value pairs, strings, and combinations of all of them. --> valuelist valuelist --> value valuelist <null> value ---> key_value_pair string key_value_pair --> key { valuelist } key --> string string --> simple_string "complex_string" simple_string --> [^ \t\n\""{""}"]+ complex_string --> ([^\"\\\r\n]|(\\\")|(\\\\))+ quotes and backslashes must be escaped with a backslash. a complex string must not include newlines or carriage returns.outside of complex strings, all white space (for example, spaces, tabs, and carriage returns) is considered equal and is used only to delimit tokens. keys the java install file uses keys to define the platform and module information. forwardcompatible gives a list of platforms ...

NSS_3.12.3_release_notes.html
sec_oid_seed_cbc in sslproto.h: tls_rsa_with_seed_cbc_sha in sslt.h: ssl_calg_seed new structure for seed support: (see blapit.h) seedcontextstr seedcontext new functions in the nss shared library: cert_rfc1485_escapeandquote (see cert.h) cert_comparecerts (see cert.h) cert_registeralternateocspaiainfocallback (see ocsp.h) pk11_getsymkeyhandle (see pk11pqg.h) util_setforkstate (see secoid.h) nss_getalgorithmpolicy (see secoid.h) nss_setalgorithmpolicy (see secoid.h) for the 2 functions above see also (in secoidt.h): nss_use_alg_in_cert_sign...

NSS tools : modutil
lowing lists, key-value pairs, strings, and combinations of all of them. --> valuelist valuelist --> value valuelist <null> value ---> key_value_pair string key_value_pair --> key { valuelist } key --> string string --> simple_string "complex_string" simple_string --> [^ \t\n\""{""}"]+ complex_string --> ([^\"\\\r\n]|(\\\")|(\\\\))+ quotes and backslashes must be escaped with a backslash. a complex string must not include newlines or carriage returns.outside of complex strings, all white space (for example, spaces, tabs, and carriage returns) is considered equal and is used only to delimit tokens. keys the java install file uses keys to define the platform and module information. forwardcompatible gives a l...

NSS tools : signtool
first = sign on a line is interpreted. blank lines are ignored, but white space on a line with keywords and values is assumed to be part of the keyword (if it comes before the equal sign) or part of the value (if it comes after the first equal sign). keywords are case insensitive, values are generally case sensitive. since the = sign and newline delimit the value, it should not be quoted. subsection basename same as -b option. compression same as -c option. certdir same as -d option. extension same as -e option. generate same as -g option. installscript same as -i option. javascriptdir same as -j option. htmldir same as -j option. certname ...

JS_FileEscapedString
this article covers features introduced in spidermonkey 1.8.5 write string into file with escaping. syntax bool js_fileescapedstring(file *fp, jsstring *str, char quote); name type description fp file * a file pointer to write into. str jsstring * a string to write into the file. quote char one of 0, single quote, and double quote. description js_fileescapedstring writes str into file fp escaping any non-printable or non-ascii character. if quote is not 0, it must be a single or double quote character that will quote the output. if successful, js_fileescapedstring returns true, otherwise false. see also mxr id search for js_fileescapedstring bug 609440 ...

JS_ParseJSON
; see json.parse. vp jsval * out parameter. *vp receives the value after parsing (and optionally, processing by the reviver). if an error occurs, the value left in *vp is undefined. description use these functions to parse a sequence of characters as json. the parsing rules applied by these methods are exactly those specified by ecmascript 5. various json extensions like trailing commas, unquoted property names, more generous number parsing, and so on are not supported. mxr id search for js_parsejson mxr id search for js_parsejsonwithreviver ...

TPS Tests
next one, so try to stick to the convention established in the other tests. yes, this is cludgey, but it's effective enough and nobody has changed it. phase declarations these map the phases to profiles. both python and javascript read them in. they must look like: var phases = { "phase1": "profile1", "phase2": "profile2", "phase3": "profile1" }; between { and } it must be strict json. e.g. quoted keys, no trailing parentheses, etc. the python testrunner will be parsing it with an unforgiving call to json.loads, so anything other than strict json will fail. you can use as many profiles or phases as you need, but every phase you define later must be declared here, or it will not be run by the python test runner. any phases declared here but not implemented later will cause the test to fa...

Secure Development Guidelines
e (in some browsers) with a simple request such as: http://www.victim.com?something=<script>alert('oops')</script> xss: prevention escape all dynamic input that will be sent back to the user html encoding &amp; → & &lt; → < &gt; → > &quot; → " &apos; → ' url encoding % encoding java/vbscript escaping depends on the context; in a single-quoted string, escaping ' would suffice sql injection occurs when un-trusted input is mixed with a sql string sql is a language used to interact with databases code injection attack that is similar to xss but targeted at sql rather than html and javascript if input is mixed with sql, it could itself become an sql instruction and be used to: query data from the database (passwords) ...

extIPreferenceBranch
essing and can be something which would not be valid as a preference. for example, null/undefined/an object. return value the value of the preference or the given default value if preference does not exists. the use of a variant as the return value means that to javascript code the value will appear as a value of the same type as is used in the preferences file and no coercion will occur. a quoted string in the preference file will always appear as a string, even if the value of the string is "true" or "false". an integer preference appears as a javascript number, and a boolean appears as a javascript boolean. there are no other types supported by the preference subsystem. setvalue() sets the value of a preference with the given name. void setvalue(in astring aname, in nsivariant ava...

XPCshell Test Manifest Expressions
tests in order to control when tests get run. the conditions accept a simple boolean expression syntax, described here. operators in order of decreasing precedence: () == != && || literal values booleans: the literal strings true and false. integers: a series of contiguous digits. only decimal integers are supported. strings: any series of characters enclosed in double quotes " or single quotes '. no escape sequences are supported. variables variables are supported as a series of letters, digits or underscores beginning with a letter or an underscore. there are a fixed set of variables provided by the test harness via mozinfo.py, with many of the values initialized at configure time by writemozinfo.py which writes mozinfo.json into the root of the build director...

NS_ConvertASCIItoUTF16
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

NS_ConvertUTF16toUTF8
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

NS_ConvertUTF8toUTF16
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

NS_LossyConvertUTF16toASCII
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsAdoptingCString
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsAdoptingString
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsAutoString
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsCAutoString
replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aelimin...

nsCString
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsDependentCString
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsDependentString
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsFixedCString
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsFixedString
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsPromiseFlatCString
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsPromiseFlatString
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsString
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsXPIDLCString
lue void replacesubstring(const char*, const char*) - source parameters char* atarget char* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsXPIDLString
ubstring(const prunichar*, const prunichar*) - source parameters prunichar* atarget prunichar* anewvalue trim void trim(const char*, prbool, prbool, prbool) - source this method trims characters found in atrimset from either end of the underlying string. @param aset -- contains chars to be trimmed from both ends @param aeliminateleading @param aeliminatetrailing @param aignorequotes -- if true, causes surrounding quotes to be ignored @return this parameters char* aset prbool aeliminateleading prbool aeliminatetrailing prbool aignorequotes compresswhitespace void compresswhitespace(prbool, prbool) - source this method strips whitespace from string. you can control whether whitespace is yanked from start and end of string as well. @param aeliminateleading contro...

nsIEditorSpellCheck
cted per-site, this method is no longer needed. void savedefaultdictionary(); parameters none. setcurrentdictionary() selects the main dictionary to use. void setcurrentdictionary( in astring dictionary ); parameters dictionary the name of the dictionary to use. typically, this is an iso language code such as "en-us". setfilter() used to filter the content (for example, to skip blockquotes in email from spell checking). call this before calling initspellchecker(); calling it after initialization will have no effect. void setfilter( in nsitextservicesfilter filter ); parameters filter an nsitextservicesfilter describing the filter to apply. this filter lets you avoid spell checking specific parts of the document. uninitspellchecker() call this to release the spell chec...

nsIHTMLEditor
rs atitle setinlineproperty() void setinlineproperty( in nsiatom aproperty, in astring aattribute, in astring avalue ); parameters aproperty aattribute avalue setparagraphformat() insert a block paragraph tag around selection. void setparagraphformat( in astring aparagraphformat ); parameters aparagraphformat "p", "h1" to "h6", "address", "pre", or "blockquote" updatebaseurl() set the baseurl for the document to the current url but only if the page doesn't have a <base> tag this should be done after the document url has changed, such as after saving a file this is used as base for relativizing link and image urls. void updatebaseurl(); parameters none. ...

nsIMsgSearchCustomTerm
*/ readonly attribute acstring id; name /// name to display in term list. this should be localized. ...

CSSPseudoElement - Web APIs
ion marks around text inside a <q> element. (a style rule may be needed to add quotation marks in older browsers.) the example below demonstrates the basic properties of the csspseudoelement object representing the opening quotation mark. const element = document.queryselector('q'); const csspseudoelement = element.pseudo('::before'); console.log(csspseudoelement.element); // outputs [object htmlquoteelement] console.log(csspseudoelement.type); // outputs '::before' specifications specification status comment css pseudo-elements level 4the definition of 'csspseudoelement' in that specification. working draft initial definition. ...

Using the CSS Typed Object Model - Web APIs
yped om is that values are separate from units; parsing and concatenating string values may become be a thing of the past. every css property in a style map has a value. if the value is a keyword, the object returned is a csskeywordvalue. if the value is numeric, a cssunitvalue is returned. csskeywordvalue is a class that defines keywords like inherit, initial, unset, and other strings you don't quote, such as auto and grid. this subclass gives you a value property via csskeywordvalue.value. cssunitvalue is returned if the value is a unit type. it is a class that defines numbers with units of measurement like 20px, 40%, 200ms, or 7. it is returned with two properties: a value and a unit. with this type we can access the numeric value — cssunitvalue.value — and its unit — cssunitvalue.un...

Document.cookie - Web APIs
a single cookie at a time using this method. consider also that: any of the following cookie attribute values can optionally follow the key-value pair, specifying the cookie to set/update, and preceded by a semi-colon separator: ;path=path (e.g., '/', '/mydir') if not specified, defaults to the current path of the current document location. note: prior to gecko 6.0, paths with quotes were treated as if the quotes were part of the string, instead of as if they were delimiters surrounding the actual path string. this has been fixed. ;domain=domain (e.g., 'example.com' or 'subdomain.example.com'). if not specified, this defaults to the host portion of the current document location. contrary to earlier specifications, leading dots in domain names are ignored, but browsers...

Document.execCommand() - Web APIs
the insertion point. this requires an integer from 1-7 as a value argument. forecolor changes a font color for the selection or at the insertion point. this requires a hexadecimal color value string as a value argument. formatblock adds an html block-level element around the line containing the current selection, replacing the block element containing the line if one exists (in firefox, <blockquote> is the exception — it will wrap any containing block element). requires a tag-name string as a value argument. virtually all block-level elements can be used. (internet explorer and edge support only heading tags h1–h6, address, and pre, which must be wrapped in angle brackets, such as "<h1>".) forwarddelete deletes the character ahead of the cursor's position, identical to hitting the del...

Element.attachShadow() - Web APIs
nt and returns a reference to its shadowroot. elements you can attach a shadow to note that you can't attach a shadow root to every type of element. there are some that can't have a shadow dom for security reasons (for example <a>), and more besides. the following is a list of elements you can attach a shadow root to: any autonomous custom element with a valid name <article> <aside> <blockquote> <body> <div> <footer> <h1> <h2> <h3> <h4> <h5> <h6> <header> <main> <nav> <p> <section> <span> syntax var shadowroot = element.attachshadow(shadowrootinit); parameters shadowrootinit a shadowrootinit dictionary, which can contain the following fields: mode a string specifying the encapsulation mode for the shadow dom tree. this can be one of: open: element...

GlobalEventHandlers.onselectionchange - Web APIs
the text selected on a webpage changes. syntax object.onselectionchange = functionref; value functionref is a function name or a function expression. the function receives a focusevent object as its sole argument. example let selection; document.onselectionchange = function() { console.log('new selection made'); selection = document.getselection(); }; for a full example, see our key quote generator demo. specifications specification status comment selection apithe definition of 'globaleventhandlers.onselectionchange' in that specification. working draft initial definition. ...

GlobalEventHandlers.onselectstart - Web APIs
t events. the selectstart event fires when the user starts to make a new text selection on a webpage. syntax object.onselectstart = functionref; value functionref is a function name or a function expression. the function receives a focusevent object as its sole argument. example document.onselectstart = function() { console.log('selection started!'); }; for a full example, see our key quote generator demo. specifications specification status comment selection apithe definition of 'globaleventhandlers.onselectstart' in that specification. working draft initial definition. ...

The HTML DOM API - Web APIs
imageelement htmlinputelement htmllielement htmllabelelement htmllegendelement htmllinkelement htmlmapelement htmlmediaelement htmlmenuelement htmlmetaelement htmlmeterelement htmlmodelement htmlolistelement htmlobjectelement htmloptgroupelement htmloptionelement htmloutputelement htmlparagraphelement htmlparamelement htmlpictureelement htmlpreelement htmlprogresselement htmlquoteelement htmlscriptelement htmlselectelement htmlslotelement htmlsourceelement htmlspanelement htmlstyleelement htmltablecaptionelement htmltablecellelement htmltablecolelement htmltableelement htmltablerowelement htmltablesectionelement htmltemplateelement htmltextareaelement htmltimeelement htmltitleelement htmltrackelement htmlulistelement htmlunknownelement htmlvideoelement ...

Index - Web APIs
methods (beyond the regular htmlelement interface it also has available to it by inheritance) for manipulating the layout and presentation of <progress> elements. 1873 htmlprogresselement.labels api, dom, property, reference the htmlprogresselement.labels read-only property returns a nodelist of the <label> elements associated with the <progress> element. 1874 htmlquoteelement api, html dom, interface, reference the htmlquoteelement interface provides special properties and methods (beyond the regular htmlelement interface it also has available to it by inheritance) for manipulating quoting elements, like <blockquote> and <q>, but not the <cite> element. 1875 htmlscriptelement api, html dom, interface, needsnewlayout, reference htm...

Web-based protocol handlers - Web APIs
$_get["value"] ) ) { $value = $_get["value"]; } ?> <!doctype html public "-//w3c//dtd html 4.01//en"> <html lang="en"> <head> <title>web protocol handler sample</title> </head> <body> <h1>web protocol handler sample - handler</h1> <p>this web page is called when handling a <code>web+burger:</code> protocol action. the data sent:</p> <textarea> <?php echo(htmlspecialchars($value, ent_quotes, 'utf-8')); ?> </textarea> </body> </html> references http://www.w3.org/tr/2011/wd-html5-20110525/timers.html#custom-handlers see also window.navigator.registercontenthandler nsiprotocolhandler (xul only) registerprotocolhandler enhancing the federated web at mozilla webdev register a custom protocolhandler at google developers. ...

Selection API - Web APIs
no support compatibility unknown compatibility unknownexperimental. expect behavior to change in the future.experimental. expect behavior to change in the future.non-standard. expect poor cross-browser support.non-standard. expect poor cross-browser support.see implementation notes.see implementation notes. see also key quote generator: a simple demo showing typical usage of the selection api to capture the current selection at any point and copy selections into a list (see it live also). the range object. ...

Window.open() - Web APIs
fusion on the user's part: changing the current window or popping up new windows can be very disorienting to users (back toolbar button is disabled). "users often don't notice that a new window has opened, especially if they are using a small monitor where the windows are maximized to fill up the screen. so a user who tries to return to the origin will be confused by a grayed out back button." quote from the top ten new mistakes of web design: 2. opening new browser windows, jakob nielsen, may 1999 when extreme changes in context are explicitly identified before they occur, then the users can determine if they wish to proceed or so they can be prepared for the change: not only they will not be confused or feel disoriented, but more experienced users can better decide how to open such links...

Web APIs
endelement htmllinkelement htmlmapelement htmlmarqueeelement htmlmediaelement htmlmenuelement htmlmenuitemelement htmlmetaelement htmlmeterelement htmlmodelement htmlolistelement htmlobjectelement htmloptgroupelement htmloptionelement htmloptionscollection htmlorforeignelement htmloutputelement htmlparagraphelement htmlparamelement htmlpictureelement htmlpreelement htmlprogresselement htmlquoteelement htmlscriptelement htmlselectelement htmlshadowelement htmlslotelement htmlsourceelement htmlspanelement htmlstyleelement htmltablecaptionelement htmltablecellelement htmltablecolelement htmltableelement htmltablerowelement htmltablesectionelement htmltemplateelement htmltextareaelement htmltimeelement htmltitleelement htmltrackelement htmlulistelement htmlunknownelement htmlvideoelement ...

HTML To MSAA - Accessibility
state_system_ haspopup state_system_ focusable n/a "open"/"close" depending on state event_object_ valuechange when selected option is changed table role_system_ table from @summary attribute n/a described_by (0x100e) points to caption element n/a n/a td, th role_system_ cell n/a n/a n/a n/a n/a n/a thead role_system_ columnheader n/a n/a n/a n/a n/a n/a abbr, acronym, blockquote, form, frame, h1-h6, iframe bstr role n/a n/a n/a n/a n/a n/a ...

::before (:before) - CSS: Cascading Style Sheets
e /* css2 syntax */ :before note: css3 introduced the ::before notation (with two colons) to distinguish pseudo-classes from pseudo-elements. browsers also accept :before, introduced in css2. examples adding quotation marks one simple example of using ::before pseudo-elements is to provide quotation marks. here we use both ::before and ::after to insert quotation characters. html <q>some quotes,</q> he said, <q>are better than none.</q> css q::before { content: "«"; color: blue; } q::after { content: "»"; color: red; } result decorative example we can style text or images in the content property almost any way we want. html <span class="ribbon">notice where the orange box is.</span> css .ribbon { background-color: #5bc8f7; } .ribbon::before { content: "look a...

::first-letter (:first-letter) - CSS: Cascading Style Sheets
hen not preceded by other content (such as images or inline tables). /* selects the first letter of a <p> */ p::first-letter { font-size: 130%; } the first letter of an element is not always trivial to identify: punctuation that precedes or immediately follows the first letter is included in the match. punctuation includes any unicode character defined in the open (ps), close (pe), initial quote (pi), final quote (pf), and other punctuation (po) classes. some languages have digraphs that are always capitalized together, like the ij in dutch. in these cases, both letters of the digraph should be matched by the ::first-letter pseudo-element. (this is poorly supported by browsers; see the browser compatibility table below.) a combination of the ::before pseudo-element and the content prop...

@document - CSS: Cascading Style Sheets
ent url is on the domain provided (or a subdomain of it). media-document(), with the parameter of video, image, plugin or all. regexp(), which matches if the document url is matched by the regular expression provided. the expression must match the entire url. the values provided to the url(), url-prefix(), domain(), and media-document() functions can be optionally enclosed by single or double quotes. the values provided to the regexp() function must be enclosed in quotes. escaped values provided to the regexp() function must additionally be escaped from the css. for example, a . (period) matches any character in regular expressions. to match a literal period, you would first need to escape it using regular expression rules (to \.), then escape that string using css rules (to \\.). @docume...

Attribute selectors - CSS: Cascading Style Sheets
us english are blue. */ div[lang~="en-us"] { color: blue; } /* all divs in portuguese are green. */ div[lang="pt"] { color: green; } /* all divs in chinese are red, whether simplified (zh-cn) or traditional (zh-tw). */ div[lang|="zh"] { color: red; } /* all divs with a traditional chinese `data-lang` are purple. ...

Layout using named grid lines - CSS: Cascading Style Sheets
e between them [sidebar-end main-start]. you can then refer to that line by either of the names. implicit grid areas from named lines when naming the lines, i mentioned that you can name these anything you like. the name is a custom ident, an author-defined name. when choosing the name you need to avoid words that might appear in the specification and be confusing - such as span. idents are not quoted. while you can choose any name, if you append -start and -end to the lines around an area, as i have in the example above, grid will create you a named area of the main name used. taking the above example, i have content-start and content-end both for rows and for columns. this means i get a grid area named content, and could place something in that area should i wish to. * {box-sizing: bord...

CSS data types - CSS: Cascading Style Sheets
ar-color-stop> <attr-fallback> <attr-name> <basic-shape> <blend-mode> <calc-product> <calc-sum> <calc-value> <color> <color-stop> <color-stop-angle> <counter-style> <custom-ident> <dimension> <filter-function> <flex> <frequency> <frequency-percentage> <gradient> <ident> <image> <integer> <length> <length-percentage> <number> <number-percentage> <percentage> <position> <quote> <ratio> <resolution> <shape-box> <shape-radius> <string> <time> <time-percentage> <timing-function> <toggle-value> <transform-function> <type-or-unit> <url> <url-modifier> <zero> specifications specification status comment css values and units module level 4 editor's draft css values and units module level 3 candidate recommendatio...

CSS reference - CSS: Cascading Style Sheets
ding-blockpadding-block-endpadding-block-startpadding-bottompadding-inlinepadding-inline-endpadding-inline-startpadding-leftpadding-rightpadding-top@pagepage-break-afterpage-break-beforepage-break-insidepaint()paint-orderpath()pc<percentage>perspectiveperspective()perspective-originplace-contentplace-itemsplace-self::placeholderpointer-eventspolygon()<position>positionprefix (@counter-style)ptpxqqquotesrradradial-gradient()range (@counter-style)<ratio>:read-only:read-writerect()remrepeat()repeating-linear-gradient()repeating-radial-gradient():requiredresize<resolution>revertrgb()rgba():rightright@right-bottom:rootrotaterotate()rotate3d()rotatex()rotatey()rotatez()row-gapsssaturate()scalescale()scale3d()scalex()scaley()scalez():scopescroll-behaviorscroll-marginscroll-margin-blockscroll-margin-bl...

Value definition syntax - CSS: Cascading Style Sheets
e defined once for all values in the specification. called basic data types, they are represented with their name surrounded by the symbol '<' and '>': <angle>, <string>, … non-terminal data types less common data types, called non-terminal data types, are also surrounded by '<' and '>'. non-terminal data types are of two kinds: data types sharing the same name of a property, put between quotes. in this case, the data type shares the same set of values as the property. they are often used in the definition of shorthand properties. data type not sharing the same name of a property. these data types are very close to the basic data types. they only differ from the basic data types in the physical location of their definition. in this case, the definition is usually physically very close...

WebKit CSS extensions - CSS: Cascading Style Sheets
supported with the -webkit- prefix but are no longer supported in evergreen browsers, with or without the -webkit- prefix. -webkit-alt* -webkit-color-correction -webkit-flow-from -webkit-flow-into -webkit-grid-columns (see grid-column) -webkit-grid-rows (see grid-row) -webkit-hyphenate-charset -webkit-image-set (see image-set()) -webkit-mask-attachment -webkit-match-nearest-mail-blockquote-color -webkit-overflow-scrolling -webkit-region-break-after -webkit-region-break-before -webkit-region-break-inside -webkit-region-fragment -webkit-shape-inside -webkit-touch-callout (see touch-action) background-origin-x (unprefixed!) background-origin-y (unprefixed!) * still supported in the safari technology preview, but not in a generally released browser. pseudo-classes :-we...

<basic-shape> - CSS: Cascading Style Sheets
ch pair argument in the list represents xi and yi - the x and y axis coordinates of the ith vertex of the polygon. path() path( [<fill-rule>,]? <string>) the optional <fill-rule> represents the filling rule used to determine the interior of the path. possible values are nonzero and evenodd. default value when omitted is nonzero. the required <string> is an svg path string encompassed in quotes the arguments not defined above are defined as follows: <shape-arg> = <length> | <percentage> <shape-radius> = <length> | <percentage> | closest-side | farthest-side defines a radius for a circle or ellipse. if omitted it defaults to closest-side. closest-side uses the length from the center of the shape to the closest side of the reference box. for circles, this is the closest side in an...

cross-fade() - CSS: Cascading Style Sheets
age with a radial gradient. syntax important: the specification and current implementations have different syntaxes. the specification syntax is explained first. specification syntax the cross-fade() function takes a list of images with a percentage defining how much of each image is retained in terms of opacity when it is blended with the other images. the percent value must be coded without quotes, must contain the “%” symbol, and its value must be between 0% and 100%. the function can be used in css anywhere an ordinary image reference can be used. cross-fade percentages think of the percentage as an opacity value for each image. this means a value of 0% means the image is fully transparent while a value of 100% makes the image fully opaque. cross-fade( url(white.png) 0%, url(bla...

<custom-ident> - CSS: Cascading Style Sheets
(in the format of a backslash, \, followed by one to six hexadecimal digits, representing its unicode code point) note that id1, id1, id1 and id1 are all different identifiers as they are case-sensitive. on the other hand, as there are several ways to escape a character, toto\? and toto\3f are the same identifiers. forbidden values a <custom-ident> must not be placed between single or double quotes as this would be identical to a <string>. moreover, the first character must not be a decimal digit, nor a hyphen (-) followed by a decimal digit or another hyphen. to prevent ambiguity, each property that uses <custom-ident> forbids the use of specific values: animation-name forbids the global css values (unset, initial, and inherit), as well as none. counter-reset counter-increment for...

<dimension> - CSS: Cascading Style Sheets
which is an identifier. unit identifiers are case insensitive. examples valid dimensions 12px 12 pixels 1rem 1 rem 1.2pt 1.2 points 2200ms 2200 milliseconds 5s 5 seconds 200hz 200 hertz 200hz 200 hertz (values are case insensitive) invalid dimensions 12 px the unit must come immediately after the number. 12"px" units are identifiers and therefore unquoted. 3sec the seconds unit is abbreviated "s" not "sec". specifications specification status comment css values and units module level 4the definition of '<dimension>' in that specification. editor's draft adds cap, ic, lh, rlh, vi, vb css values and units module level 3the definition of '<dimension>' in that specification. candidate recommenda...

direction - CSS: Cascading Style Sheets
he default value. rtl text and other elements go from right to left. for the direction property to have any effect on inline-level elements, the unicode-bidi property's value must be embed or override. formal definition initial valueltrapplies toall elementsinheritedyescomputed valueas specifiedanimation typediscrete formal syntax ltr | rtl examples setting right-to-left direction blockquote { direction: rtl; } specifications specification status comment css writing modes module level 3the definition of 'direction' in that specification. proposed recommendation no change. css level 2 (revision 1)the definition of 'direction' in that specification. recommendation initial definition. browser compatibility the compatibility...

unicode-bidi - CSS: Cascading Style Sheets
ws the display of data that is already formatted using a tool following the unicode bidirectional algorithm. formal definition initial valuenormalapplies toall elements, though some values have no effect on non-inline elementsinheritednocomputed valueas specifiedanimation typediscrete formal syntax normal | embed | isolate | bidi-override | isolate-override | plaintext examples css .bible-quote { direction: rtl; unicode-bidi: embed; } html <div class="bible-quote"> a line of text </div> <div> another line of text </div> result specifications specification status comment css writing modes module level 3the definition of 'unicode-bidi' in that specification. proposed recommendation added plaintext, isolate, and isolate-override keywords. ...

url() - CSS: Cascading Style Sheets
ly true urls. in css level 2, the definition of url() was extended to describe any uri, including urns. css values and units level 3 returned to the narrower, initial definition. now, url() denotes only true <url>s. syntax values <string> <url> a url, which is a relative or absolute address, or pointer, to the web resource to be included, or a data uri, optionally in single or double quotes. quotes are required if the url includes parentheses, whitespace, or quotes, unless these characters are escaped, or if the address includes control characters above 0x7e. double quotes cannot occur inside double quotes and single quotes cannot occur inside single quotes unless escaped. the following are all valid and equivalent: <css_property>: url("https://example.com/image.png") <css_proper...

<url> - CSS: Cascading Style Sheets
nt that url() could be used to create a <uri> css data type. this change was not only awkward but, debatably, unnecessary, since urns are almost never used in actual css. to alleviate the confusion, css level 3 returned to the narrower, initial definition. now, url() denotes only true <url>s. syntax the <url> data type is specified using the url() functional notation. it may be written without quotes, or surrounded by single or double quotes. relative urls are allowed, and are relative to the url of the stylesheet (not to the url of the web page). if you choose to write the url without quotes, use a backslash (\) before any parentheses, whitespace characters, single quotes (') and double quotes (") that are part of the url. <a_css_property>: url("http://mysite.example.com/mycursor.png") <a...

Content categories - Developer guides
e document, set up links to other documents, or convey other out of band information. elements belonging to this category are <base>, <command>, <link>, <meta>, <noscript>, <script>, <style> and <title>. flow content elements belonging to the flow content category typically contain text or embedded content. ...

Rich-Text Editing in Mozilla - Developer guides
h5baeaaacalaaaaaawabyaaam2elrc/jdksespwjorfvggcbubotfbeq6qiaysqnrhaeozyaz07lu9lubnc0ugqu1k52s6n5oeads=" /> <img class="intlink" title="dotted list" onclick="formatdoc('insertunorderedlist');" src="data:image/gif;base64,r0lgodlhfgawamigaaaaab1chf9vj1ie33morqezxv///////yh5baeaaacalaaaaaawabyaaamyelrc/jdksesppnhgrlbakizrerbbqm6ytnbfmy7lud64uwiukniggqliquwoykqykgaaow==" /> <img class="intlink" title="quote" onclick="formatdoc('formatblock','blockquote');" src="data:image/gif;base64,r0lgodlhfgawaiqxac1nqjfrjkbgmt9nqujnsk9xrfj7u2r9qmkbt1igzhmorm6sz4oxw3odz4cl2zsnw6kxyqo306k63bg70btb0rdi3bvi4p///////////////////////////////////yh5baekab8alaaaaaawabyaaavp4ceozgmeakqubes2cekkervei1zzuogyflakecezfi0ggtgkebatfmjavxwevookeqgabb9iqdcmrlpjetrqqlhhjinrtq/b7/i8fp8paqa7" /> <img class="intlink" title="add inden...

Making content editable - Developer guides
h5baeaaacalaaaaaawabyaaam2elrc/jdksespwjorfvggcbubotfbeq6qiaysqnrhaeozyaz07lu9lubnc0ugqu1k52s6n5oeads=" /> <img class="intlink" title="dotted list" onclick="formatdoc('insertunorderedlist');" src="data:image/gif;base64,r0lgodlhfgawamigaaaaab1chf9vj1ie33morqezxv///////yh5baeaaacalaaaaaawabyaaamyelrc/jdksesppnhgrlbakizrerbbqm6ytnbfmy7lud64uwiukniggqliquwoykqykgaaow==" /> <img class="intlink" title="quote" onclick="formatdoc('formatblock','blockquote');" src="data:image/gif;base64,r0lgodlhfgawaiqxac1nqjfrjkbgmt9nqujnsk9xrfj7u2r9qmkbt1igzhmorm6sz4oxw3odz4cl2zsnw6kxyqo306k63bg70btb0rdi3bvi4p///////////////////////////////////yh5baekab8alaaaaaawabyaaavp4ceozgmeakqubes2cekkervei1zzuogyflakecezfi0ggtgkebatfmjavxwevookeqgabb9iqdcmrlpjetrqqlhhjinrtq/b7/i8fp8paqa7" /> <img class="intlink" title="delete in...

HTML5 Parser - Developer guides
methods and css selectors behave case-sensitively, so you need to write your dom calls and css selectors using the canonical case, which is camelcase for various parts of svg such as viewbox. the syntax <foo/> opens and immediately closes the foo element if it is a mathml or svg element (i.e. not an html element). attributes are tokenized the same way they are tokenized in html, so you can omit quotes in the same situations where you can omit quotes in html (i.e. when the attribute value is not the empty string and does not contain whitespace, ", ', `, <, =, or >). warning: the two above features do not combine well due to the reuse of legacy-compatible html tokenization. if you omit quotes on the last attribute value, you must have a space before the closing slash. <circle fill=green /> is ...

HTML attribute reference - HTML: Hypertext Markup Language
edia capture' in that specification.spec, specifies a new file can be captured. challenge <keygen> a challenge string that is submitted along with the public key. charset <meta>, <script> declares the character encoding of the page or script. checked <command>, <input> indicates whether the element should be checked on page load. cite <blockquote>, <del>, <ins>, <q> contains a uri which points to the source of the quote or change. class global attribute often used with css to style elements with common properties. code <applet> specifies the url of the applet's class file to be loaded and executed. codebase <applet> this attribute gives the absolute or relative url of the directory where app...

Block-level elements - HTML: Hypertext Markup Language
ne" elements combined together correspond to the flow content in html5. there are also additional categories, e.g. interactive content. elements the following is a complete list of all html "block-level" elements (although "block-level" is not technically defined for elements that are new in html5). <address> contact information. <article> article content. <aside> aside content. <blockquote> long ("block") quotation. <details> disclosure widget. <dialog> dialog box. <dd> describes a term in a description list. <div> document division. <dl> description list. <dt> description list term. <fieldset> field set label. <figcaption> figure caption. <figure> groups media content with a caption (see <figcaption>). <footer> section or page footer. <form> input form. <h1...

<cite>: The Citation element - HTML: Hypertext Markup Language
k post a written or oral statement and so forth. it's worth noting that the w3c specification says that a reference to a creative work, as included within a <cite> element, may include the name of the work’s author. however, the whatwg specification for <cite> says the opposite: that a person’s name must never be included, under any circumstances. to include a reference to the source of quoted material which is contained within a <blockquote> or <q> element, use the cite attribute on the element. typically, browsers style the contents of a <cite> element in italics by default. to avoid this, apply the css font-style property to the <cite> element. example <p>more information can be found in <cite>[iso-0000]</cite>.</p> the html above outputs: specifications specificat...

<figure>: The Figure with Optional Caption element - HTML: Hypertext Markup Language
ppname + "; "; txt+= "browser version: " + navigator.appversion + "; "; txt+= "cookies enabled: " + navigator.cookieenabled + "; "; txt+= "platform: " + navigator.platform + "; "; txt+= "user-agent header: " + navigator.useragent + "; "; console.log("navigatorexample", txt); } </pre> </figure> quotations <figure> <figcaption><cite>edsger dijkstra:</cite></figcaption> <blockquote>if debugging is the process of removing software bugs, then programming must be the process of putting them in.</blockquote> </figure> poems <figure> <p style="white-space:pre"> bid me discourse, i will enchant thine ear, or like a fairy trip upon the green, or, like a nymph, with long dishevell'd hair, dance on the sands, and yet no footing seen: love is a spirit all compact of fire...

<kbd>: The Keyboard Input element - HTML: Hypertext Markup Language
ou can also create a new document by pressing <kbd><kbd class="key">ctrl</kbd>+<kbd class="key">n</kbd></kbd>.</p> result the result is just what we want! echoed input nesting a <kbd> element inside a <samp> element represents input that has been echoed back to the user by the system. <p>if a syntax error occurs, the tool will output the initial command you typed for your review:</p> <blockquote> <samp><kbd>custom-git ad my-new-file.cpp</kbd></samp> </blockquote> representing onscreen input options nesting a <samp> element inside a <kbd> element represents input which is based on text presented by the system, such as the names of menus and menu items, or the names of buttons displayed on the screen. for example, you can explain how to choose the "new document" option in the "file"...

<p>: The Paragraph element - HTML: Hypertext Markup Language
to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request. content categories flow content, palpable content. permitted content phrasing content. tag omission the start tag is required. the end tag may be omitted if the <p> element is immediately followed by an <address>, <article>, <aside>, <blockquote>, <div>, <dl>, <fieldset>, <footer>, <form>, <h1>, <h2>, <h3>, <h4>, <h5>, <h6>, <header>, <hr>, <menu>, <nav>, <ol>, <pre>, <section>, <table>, <ul> or another <p> element, or if there is no more content in the parent element and the parent element is not an <a> element. permitted parents any element that accepts flow content. implicit aria role no corresponding role ...

<samp>: The Sample Output element - HTML: Hypertext Markup Language
its contents are typically rendered using the browser's default monospaced font (such as courier or lucida console). the source for this interactive example is stored in a github repository. if you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request. content categories flow content, phrasing content, palpable content. permitted content phrasing content. tag omission none, both the starting and ending tag are mandatory. ...

Data URLs - HTTP
set=us-ascii if the data is textual, you can simply embed the text (using the appropriate entities or escapes based on the enclosing document's type). otherwise, you can specify base64 to embed base64-encoded binary data. you can find more info on mime types here and here. a few examples: data:,hello%2c%20world! simple text/plain data. note the use of percent-encoding (url-encoding) for the quote and space characters. also, for csv data (mime type "text/csv"), percent-encoding is needed to preserve the line endings that delimit rows of the spreadsheet. data:text/plain;base64,sgvsbg8sifdvcmxkiq== base64-encoded version of the above data:text/html,%3ch1%3ehello%2c%20world!%3c%2fh1%3e an html document with <h1>hello, world!</h1> data:text/html,<script>alert('hi');</script> an html docu...

Alt-Svc - HTTP
t-svc: clear alt-svc: <protocol-id>=<alt-authority>; ma=<max-age> alt-svc: <protocol-id>=<alt-authority>; ma=<max-age>; persist=1 clear the special value ''clear" indicates that the origin requests all alternatives for that origin to be invalidated. <protocol-id> the alpn protocol identifier. examples include h2 for http/2 and h3-25 for draft 25 of the http/3 protocol. <alt-authority> the quoted string specifying the alternative authority which consists of an optional host override, a colon, and a mandatory port number. ma=<max-age>optional the number of seconds for which the alternative service is considered fresh. if omitted, it defaults to 24 hours. alternative service entries can be cached for up to <max-age> seconds, minus the age of the response (from the age header). if the cac...

Cache-Control - HTTP
ctive should be in the response. header type general header forbidden header name no cors-safelisted response header yes syntax caching directives have the following rules to be valid: case-insensitive, but lowercase is recommended. multiple directives are comma-separated. some directives have an optional argument, which can be either a token or a quoted-string. (see spec for definitions) cache request directives standard cache-control directives that can be used by the client in an http request. cache-control: max-age=<seconds> cache-control: max-stale[=<seconds>] cache-control: min-fresh=<seconds> cache-control: no-cache cache-control: no-store cache-control: no-transform cache-control: only-if-cached cache response directives standard ...

Clear-Site-Data - HTTP
forbidden header name no syntax the clear-site-data header accepts one or more directives. if all types of data should be cleared, the wildcard directive ("*") can be used. // single directive clear-site-data: "cache" // multiple directives (comma separated) clear-site-data: "cache", "cookies" // wild card clear-site-data: "*" directives all directives must comply with the quoted-string grammar. a directive that does not include the double quotes is invalid. "cache" indicates that the server wishes to remove locally cached data (i.e. the browser cache, see http caching) for the origin of the response url. depending on the browser, this might also clear out things like pre-rendered pages, script caches, webgl shader caches, or address bar suggestions. "cookies" indi...

Content-Disposition - HTTP
ded; most browsers presenting a 'save as' dialog, prefilled with the value of the filename parameters if present). content-disposition: inline content-disposition: attachment content-disposition: attachment; filename="filename.jpg" as a header for a multipart body the first parameter in the http context is always form-data. additional parameters are case-insensitive and have arguments that use quoted-string syntax after the '=' sign. multiple parameters are separated by a semi-colon (';'). content-disposition: form-data content-disposition: form-data; name="fieldname" content-disposition: form-data; name="fieldname"; filename="filename.jpg" directives name is followed by a string containing the name of the html field in the form that the content of this subpart refers to. when dealing ...

ETag - HTTP
ntly. weak etag values of two representations of the same resources might be semantically equivalent, but not byte-for-byte identical. this means weak etags prevent caching when byte range requests are used, but strong etags mean range requests can still be cached. "<etag_value>" entity tag uniquely representing the requested resource. they are a string of ascii characters placed between double quotes, like "675af34563dc-tr34". the method by which etag values are generated is not specified. often, a hash of the content, a hash of the last modification timestamp, or just a revision number is used. for example, mdn uses a hexadecimal hash of the wiki article content. examples etag: "33a64df551425fcc55e4d42a148795d9f25f89d4" etag: w/"0815" avoiding mid-air collisions with the help of the et...

If-Match - HTTP
hed. if the request cannot be fulfilled, the 412 (precondition failed) response is returned. header type request header forbidden header name no syntax if-match: <etag_value> if-match: <etag_value>, <etag_value>, … directives <etag_value> entity tags uniquely representing the requested resources. they are a string of ascii characters placed between double quotes (like "675af34563dc-tr34"). they may be prefixed by w/ to indicate that they are "weak", i.e. that they represent the resource semantically, but not byte-for-byte. however, in an if-match header, weak entity tags will never match. * the asterisk is a special value representing any resource. examples if-match: "bfc13a64729c4290ef5b2c2730249c88ca92d82d" if-match: "67ab43", "54ed21", "7892dd"...

If-None-Match - HTTP
put; this problem is a variation of the lost update problem. header type request header forbidden header name no syntax if-none-match: "<etag_value>" if-none-match: "<etag_value>", "<etag_value>", … if-none-match: * directives <etag_value> entity tags uniquely representing the requested resources. they are a string of ascii characters placed between double quotes (like "675af34563dc-tr34") and may be prefixed by w/ to indicate that the weak comparison algorithm should be used (this is useless with if-none-match as it only uses that algorithm). * the asterisk is a special value representing any resource. they are only useful when uploading a resource, usually with put, to check if another resource with the identity has already been uploaded before. ex...

If-Range - HTTP
ored resource has not been modified since the last fragment has been received. header type request header forbidden header name no syntax if-range: <day-name>, <day> <month> <year> <hour>:<minute>:<second> gmt if-range: <etag> directives <etag> an entity tag uniquely representing the requested resource. it is a string of ascii characters placed between double quotes (like "675af34563dc-tr34") and may be prefixed by w/ to indicate that the weak comparison algorithm should be used. <day-name> one of "mon", "tue", "wed", "thu", "fri", "sat", or "sun" (case-sensitive). <day> 2 digit day number, e.g. "04" or "23". <month> one of "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec" (case sensitive). <year> 4 digit year num...

Public-Key-Pins-Report-Only - HTTP
er reference page and the http public key pinning article. header type response header forbidden header name no syntax public-key-pins-report-only: pin-sha256="<pin-value>"; max-age=<expire-time>; includesubdomains; report-uri="<uri>" directives pin-sha256="<pin-value>" the quoted string is the base64 encoded subject public key information (spki) fingerprint. it is possible to specify multiple pins for different public keys. some browsers might allow other hashing algorithms than sha-256 in the future. max-age=<expire-time> this directive is meaningless for the public-key-pins-report-only header, it will be ignored by user agents and the header will not be cached. incl...

Public-Key-Pins - HTTP
transparency and expect-ct header instead. for more information, see the http public key pinning article. header type response header forbidden header name no syntax public-key-pins: pin-sha256="<pin-value>"; max-age=<expire-time>; includesubdomains; report-uri="<uri>" directives pin-sha256="<pin-value>" the quoted string is the base64 encoded subject public key information (spki) fingerprint. it is possible to specify multiple pins for different public keys. some browsers might allow other hashing algorithms than sha-256 in the future. max-age=<expire-time> the time, in seconds, that the browser should remember that this site is only to be accessed using one of the defined keys. includesubdomains optio...

Set-Cookie - HTTP
ame>=<cookie-value>; domain=<domain-value>; secure; httponly attributes <cookie-name>=<cookie-value> a cookie begins with a name-value pair: a <cookie-name> can be any us-ascii characters, except control characters, spaces, or tabs. it also must not contain a separator character like the following: ( ) < > @ , ; : \ " / [ ] ? = { }. a <cookie-value> can optionally be wrapped in double quotes and include any us-ascii characters excluding control characters, whitespace, double quotes, comma, semicolon, and backslash. encoding: many implementations perform url encoding on cookie values, however it is not required per the rfc specification. it does help satisfying the requirements about which characters are allowed for <cookie-value> though. __secure- prefix: cookies names starting wi...

HTTP Public Key Pinning (HPKP) - HTTP
an a built-in trust anchor). this means that for users who imported custom root certificates all pinning violations are ignored. enabling hpkp to enable this feature for your site, you need to return the public-key-pins http header when your site is accessed over https: public-key-pins: pin-sha256="base64=="; max-age=expiretime [; includesubdomains][; report-uri="reporturi"] pin-sha256 the quoted string is the base64 encoded subject public key information (spki) fingerprint. it is possible to specify multiple pins for different public keys. some browsers might allow other hashing algorithms than sha-256 in the future. see below on how to extract this information out of a certificate or key file. max-age the time, in seconds, that the browser should remember that this site is only to be...

A re-introduction to JavaScript (JS tutorial) - JavaScript
some javascript engine and minifier optimizations being applied. it can also be used to set and get properties with names that are reserved words: obj.for = 'simon'; // syntax error, because 'for' is a reserved word obj['for'] = 'simon'; // works fine starting in ecmascript 5, reserved words may be used as object property names "in the buff". this means that they don't need to be "clothed" in quotes when defining object literals. see the es5 spec. for more on objects and prototypes see object.prototype. for an explanation of object prototypes and the object prototype chains see inheritance and the prototype chain. starting in ecmascript 2015, object keys can be defined by the variable using bracket notation upon being created. {[phonetype]: 12345} is possible instead of just var userpho...

Deprecated and obsolete features - JavaScript
followed by one, two, or three octal digits) are deprecated in string and regular expression literals. the escape and unescape functions are deprecated. use encodeuri, encodeuricomponent, decodeuri or decodeuricomponent to encode and decode escape sequences for special characters. string methods html wrapper methods like string.prototype.fontsize and string.prototype.big. string.prototype.quote is removed from firefox 37. non standard flags parameter in string.prototype.search, string.prototype.match, and string.prototype.replace are deprecated. string.prototype.substr probably won't be removed anytime soon, but it's defined in annex b of the ecma-262 standard, whose introduction states: "… programmers should not use or assume the existence of these features and behaviours when writ...

SyntaxError: invalid regular expression flag "x" - JavaScript
ere are only six valid regular expression flags. /foo/bar; // syntaxerror: invalid regular expression flag "b" did you intend to create a regular expression? an expression containing two slashes is interpreted as a regular expression literal. let obj = { url: /docs/web }; // syntaxerror: invalid regular expression flag "w" or did you mean to create a string instead? add single or double quotes to create a string literal. let obj = { url: '/docs/web' }; valid regular expression flags see the table above for the six valid regular expression flags that are allowed in javascript. /foo/g; /foo/gims; /foo/uy; ...

SyntaxError: missing ; before statement - JavaScript
operly, or using var wrongly. you might also have too many parenthesis somewhere. carefully check the syntax when this error is thrown. examples unescaped strings this error can occur easily when not escaping strings properly and the javascript engine is expecting the end of your string already. for example: var foo = 'tom's bar'; // syntaxerror: missing ; before statement you can use double quotes, or escape the apostrophe: var foo = "tom's bar"; var foo = 'tom\'s bar'; declaring properties with var you cannot declare properties of an object or array with a var declaration. var obj = {}; var obj.foo = 'hi'; // syntaxerror missing ; before statement var array = []; var array[0] = 'there'; // syntaxerror missing ; before statement instead, omit the var keyword: var obj = {}; obj.fo...

Array - JavaScript
an object with a property named 3d, it can only be referenced using bracket notation. let years = [1950, 1960, 1970, 1980, 1990, 2000, 2010] console.log(years.0) // a syntax error console.log(years[0]) // works properly renderer.3d.settexture(model, 'character.png') // a syntax error renderer['3d'].settexture(model, 'character.png') // works properly in the 3d example, '3d' had to be quoted (because it begins with a digit). but it's also possible to quote the array indexes as well (e.g., years['2'] instead of years[2]), although it's not necessary. the 2 in years[2] is coerced into a string by the javascript engine through an implicit tostring conversion. as a result, '2' and '02' would refer to two different slots on the years object, and the following example could be true: con...

JSON.parse() - JavaScript
2, "3": {"4": 4, "5": {"6": 6}}}', (key, value) => { console.log(key); // log the current property name, the last is "". return value; // return the unchanged property value. }); // 1 // 2 // 4 // 6 // 5 // 3 // "" json.parse() does not allow trailing commas // both will throw a syntaxerror json.parse('[1, 2, 3, 4, ]'); json.parse('{"foo" : 1, }'); json.parse() does not allow single quotes // will throw a syntaxerror json.parse("{'foo': 1}"); specifications specification ecmascript (ecma-262)the definition of 'json.parse' in that specification. ...

eval() - JavaScript
switching to json, which allows the string to use a subset of javascript syntax to represent data. see also downloading json and javascript in extensions. note that since json syntax is limited compared to javascript syntax, many valid javascript literals will not parse as json. for example, trailing commas are not allowed in json, and property names (keys) in object literals must be enclosed in quotes. be sure to use a json serializer to generate strings that will be later parsed as json. pass data instead of code for example, an extension designed to scrape contents of web-pages could have the scraping rules defined in xpath instead of javascript code. run code with limited privileges if you must run the code, consider running it with reduced privileges. this advice applies mainly to ext...

Lexical grammar - JavaScript
d object initializer for more information. var o = { a: 'foo', b: 'bar', c: 42 }; // shorthand notation. new in es2015 var a = 'foo', b = 'bar', c = 42; var o = {a, b, c}; // instead of var o = { a: a, b: b, c: c }; array literals see also array for more information. [1954, 1974, 1990, 2014] string literals a string literal is zero or more unicode code points enclosed in single or double quotes. unicode code points may also be represented by an escape sequence. all code points may appear literally in a string literal except for these closing quote code points: u+005c \ (backslash), u+000d <cr>, and u+000a <lf>. prior to the proposal to make all json text valid ecma-262, u+2028 <ls> and u+2029 <ps>, were also disallowed from appearing unescaped in string literals. any code point...

Object initializer - JavaScript
to describe an object. values of object properties can either contain primitive data types or other objects. object literal notation vs json the object literal notation is not the same as the javascript object notation (json). although they look similar, there are differences between them: json permits only property definition using "property": value syntax. the property name must be double-quoted, and the definition cannot be a shorthand. in json the values can only be strings, numbers, arrays, true, false, null, or another (json) object. a function value (see "methods" above) can not be assigned to a value in json. objects like date will be a string after json.parse(). json.parse() will reject computed property names and an error will be thrown. examples creating objects an empt...

import - JavaScript
rt, * as name from "module-name"; import "module-name"; var promise = import("module-name"); defaultexport name that will refer to the default export from the module. module-name the module to import from. this is often a relative or absolute path name to the .js file containing the module. certain bundlers may permit or require the use of the extension; check your environment. only single quoted and double quoted strings are allowed. name name of the module object that will be used as a kind of namespace when referring to the imports. exportn name of the exports to be imported. aliasn names that will refer to the named imports. description the name parameter is the name of the "module object" which will be used as a kind of namespace to refer to the exports. the export paramete...

Template literals (Template strings) - JavaScript
nd string interpolation features with them. they were called "template strings" in prior editions of the es2015 specification. syntax `string text` `string text line 1 string text line 2` `string text ${expression} string text` tag`string text ${expression} string text` description template literals are enclosed by the backtick (` `) (grave accent) character instead of double or single quotes. template literals can contain placeholders. these are indicated by the dollar sign and curly braces (${expression}). the expressions in the placeholders and the text between the backticks (` `) get passed to a function. the default function just concatenates the parts into a single string. if there is an expression preceding the template literal (tag here), this is called a tagged template. i...

MathML documentation index - MathML
respective operands (such as <mi> and <mn>). this element renders as a horizontal row containing its arguments. 27 <ms> mathml, mathml reference, mathml:element, mathml:token elements the mathml <ms> element represents a string literal meant to be interpreted by programming languages and computer algebra systems. by default, string literals are displayed as enclosed by double quotes (&quot;); by using the lquote and rquote attributes, you can set custom characters to display. note that quotation marks should not be specified unless they are part of the string literal. the content of an <ms> element is not an ascii string per se, but rather a sequence of characters and <mglyph> and <malignmark> elements. 28 <mspace> mathml, mathml reference, mathml:element, ma...

Autoplay guide for media and Web Audio APIs - Web media technologies
ay feature policy in addition to the browser-side management and control over autoplay functionality described above, a web server can also express its willingness to allow autoplay to function. the http feature-policy header's autoplay directive is used to control which domains, if any, can be used to autoplay media. by default, the autoplay feature policy is set to 'self' (including the single quote characters), indicating that autoplay is permitted as they're hosted on the same domain as the document. you can also specify 'none' to disable autoplay entirely, '*' to allow autoplay from all domains, or one or more specific origins from which media can be automatically played. these origins are separated by space characters. note: the specified feature policy applies to the document and eve...

name - SVG: Scalable Vector Graphics
<font-face-name>, name defines the name of the font face. value <name> default value none animatable yes <name> this value specifies the name of a local font. unlike the syntax allowed between the parentheses of the local(…) clause in an @font-face rule src descriptor, the font name specified in this attribute is not surrounded in single or double quotes. specifications specification status comment scalable vector graphics (svg) 1.1 (second edition)the definition of 'name for <font-face-name>' in that specification. recommendation initial definition for <font-face-name> scalable vector graphics (svg) 1.1 (second edition)the definition of 'name for <color-profile>' in that specification. recommenda...

Introduction - SVG: Scalable Vector Graphics
gecko and some of the other major implementations. before starting you should have a basic understanding of xml or another markup language such as html. if you are not too familiar with xml, here are some guidelines to keep in mind: svg elements and attributes should all be entered in the case shown here since xml is case-sensitive (unlike html). attribute values in svg must be placed inside quotes, even if they are numbers. svg is a huge specification. this tutorial attempts to cover the basics. once you are familiar you should be able to use the element reference and the interface reference to find out anything else you need to know. flavors of svg since becoming a recommendation in 2003, the most recent "full" svg version is 1.1. it builds on top of svg 1.0, but adds more modulariza...

Positions - SVG: Scalable Vector Graphics
er coordinate system. apart from scaling the coordinate system can also be rotated, skewed and flipped. the default user coordinate system maps one user pixel to one device pixel. (however, the device may decide, what it understands as one pixel.) lengths in the svg file with specific dimensions, like "in" or "cm", are then calculated in a way that makes them appear 1:1 in the resulting image. a quote from the svg 1.1 specification illustrates this: [...] suppose that the user agent can determine from its environment that "1px" corresponds to "0.2822222mm" (i.e., 90dpi). then, for all processing of svg content: [...] "1cm" equals "35.43307px" (and therefore 35.43307 user units) « previousnext » ...

PI Parameters - XSLT: Extensible Stylesheet Language Transformations
empty the null namespace is used. it is not an error to specify a parameter name that does not exist in the stylesheet (or that is a variable in the stylesheet). the pi is simply ignored. if both value and select are present or if neither value nor select are present the pi is ignored. note that value="..." is not strictly equal to select="'...'" since the value can contain both apostrophe and quote characters. examples set the parameter 'color' to the string 'red': <?xslt-param name="color" value="red"?> set the parameter 'columns' to the number 2: <?xslt-param name="columns" select="2"?> set the parameter 'books' to a nodeset containing all <book> elements in the null namespace: <?xslt-param name="books" select="//book"?> set the parameter 'show-toc' to boolean true: <?xslt-pa...