Annotation of html5/spec-author-view/the-script-element.html, revision 1.104
1.104 ! mike 1: <!doctype html>
1.102 mike 2: <html lang="en-US-x-Hixie"><meta content="text/html; charset=utf-8" http-equiv="Content-Type"><title>4.3.1 The script element — HTML5: Edition for Web Authors</title><meta content="width=device-width;" name="viewport"><link href="whatwg.css" rel="stylesheet"><style type="text/css">
1.1 mike 3: pre { margin-left: 2em; white-space: pre-wrap; }
4: h2 { margin: 3em 0 1em 0; }
5: h3 { margin: 2.5em 0 1em 0; }
6: h4 { margin: 2.5em 0 0.75em 0; }
7: h5, h6 { margin: 2.5em 0 1em; }
8: h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; }
9: h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; }
10: p { margin: 1em 0; }
11: hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; }
12: dl, dd { margin-top: 0; margin-bottom: 0; }
13: dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; }
14: dt + dt { margin-top: 0; }
15: dd dt { margin-top: 0.25em; margin-bottom: 0; }
16: dd p { margin-top: 0; }
17: dd dl + p { margin-top: 1em; }
18: dd table + p { margin-top: 1em; }
19: p + * > li, dd li { margin: 1em 0; }
20: dt, dfn { font-weight: bold; font-style: normal; }
21: dt dfn { font-style: italic; }
22: pre, code { font-size: inherit; font-family: monospace; font-variant: normal; }
23: pre strong { color: black; font: inherit; font-weight: bold; background: yellow; }
24: pre em { font-weight: bolder; font-style: normal; }
25: @media screen { code { color: orangered; } code :link, code :visited { color: inherit; } }
26: var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; }
27: table { border-collapse: collapse; border-style: hidden hidden none hidden; }
28: table thead, table tbody { border-bottom: solid; }
29: table tbody th:first-child { border-left: solid; }
30: table tbody th { text-align: left; }
31: table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; }
32: blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; }
33:
34: .bad, .bad *:not(.XXX) { color: gray; border-color: gray; background: transparent; }
35: .matrix, .matrix td { border: none; text-align: right; }
36: .matrix { margin-left: 2em; }
37: .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
38: .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
39: .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
40:
41: .toc dfn, h1 dfn, h2 dfn, h3 dfn, h4 dfn, h5 dfn, h6 dfn { font: inherit; }
42: img.extra { float: right; }
43: pre.idl { border: solid thin; background: #EEEEEE; color: black; padding: 0.5em 1em; }
44: pre.idl :link, pre.idl :visited { color: inherit; background: transparent; }
45: pre.css { border: solid thin; background: #FFFFEE; color: black; padding: 0.5em 1em; }
46: pre.css:first-line { color: #AAAA50; }
47: dl.domintro { color: green; margin: 2em 0 2em 2em; padding: 0.5em 1em; border: none; background: #DDFFDD; }
48: hr + dl.domintro, div.impl + dl.domintro { margin-top: 2.5em; margin-bottom: 1.5em; }
49: dl.domintro dt, dl.domintro dt * { color: black; text-decoration: none; }
50: dl.domintro dd { margin: 0.5em 0 1em 2em; padding: 0; }
51: dl.domintro dd p { margin: 0.5em 0; }
52: dl.switch { padding-left: 2em; }
53: dl.switch > dt { text-indent: -1.5em; }
54: dl.switch > dt:before { content: '\21AA'; padding: 0 0.5em 0 0; display: inline-block; width: 1em; text-align: right; line-height: 0.5em; }
55: dl.triple { padding: 0 0 0 1em; }
56: dl.triple dt, dl.triple dd { margin: 0; display: inline }
57: dl.triple dt:after { content: ':'; }
58: dl.triple dd:after { content: '\A'; white-space: pre; }
59: .diff-old { text-decoration: line-through; color: silver; background: transparent; }
60: .diff-chg, .diff-new { text-decoration: underline; color: green; background: transparent; }
61: a .diff-new { border-bottom: 1px blue solid; }
62:
63: h2 { page-break-before: always; }
64: h1, h2, h3, h4, h5, h6 { page-break-after: avoid; }
65: h1 + h2, hr + h2.no-toc { page-break-before: auto; }
66:
67: p > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]),
68: li > span:not([title=""]):not([class="XXX"]):not([class="impl"]):not([class="note"]), { border-bottom: solid #9999CC; }
69:
70: div.head { margin: 0 0 1em; padding: 1em 0 0 0; }
71: div.head p { margin: 0; }
72: div.head h1 { margin: 0; }
73: div.head .logo { float: right; margin: 0 1em; }
74: div.head .logo img { border: none } /* remove border from top image */
75: div.head dl { margin: 1em 0; }
76: div.head p.copyright, div.head p.alt { font-size: x-small; font-style: oblique; margin: 0; }
77:
78: body > .toc > li { margin-top: 1em; margin-bottom: 1em; }
79: body > .toc.brief > li { margin-top: 0.35em; margin-bottom: 0.35em; }
80: body > .toc > li > * { margin-bottom: 0.5em; }
81: body > .toc > li > * > li > * { margin-bottom: 0.25em; }
82: .toc, .toc li { list-style: none; }
83:
84: .brief { margin-top: 1em; margin-bottom: 1em; line-height: 1.1; }
85: .brief li { margin: 0; padding: 0; }
86: .brief li p { margin: 0; padding: 0; }
87:
88: .category-list { margin-top: -0.75em; margin-bottom: 1em; line-height: 1.5; }
89: .category-list::before { content: '\21D2\A0'; font-size: 1.2em; font-weight: 900; }
90: .category-list li { display: inline; }
91: .category-list li:not(:last-child)::after { content: ', '; }
92: .category-list li > span, .category-list li > a { text-transform: lowercase; }
93: .category-list li * { text-transform: none; } /* don't affect <code> nested in <a> */
94:
95: .XXX { color: #E50000; background: white; border: solid red; padding: 0.5em; margin: 1em 0; }
96: .XXX > :first-child { margin-top: 0; }
97: p .XXX { line-height: 3em; }
98: .annotation { border: solid thin black; background: #0C479D; color: white; position: relative; margin: 8px 0 20px 0; }
99: .annotation:before { position: absolute; left: 0; top: 0; width: 100%; height: 100%; margin: 6px -6px -6px 6px; background: #333333; z-index: -1; content: ''; }
100: .annotation :link, .annotation :visited { color: inherit; }
101: .annotation :link:hover, .annotation :visited:hover { background: transparent; }
102: .annotation span { border: none ! important; }
103: .note { color: green; background: transparent; font-family: sans-serif; }
104: .warning { color: red; background: transparent; }
105: .note, .warning { font-weight: bolder; font-style: italic; }
106: p.note, div.note { padding: 0.5em 2em; }
107: span.note { padding: 0 2em; }
108: .note p:first-child, .warning p:first-child { margin-top: 0; }
109: .note p:last-child, .warning p:last-child { margin-bottom: 0; }
110: .warning:before { font-style: normal; }
111: p.note:before { content: 'Note: '; }
112: p.warning:before { content: '\26A0 Warning! '; }
113:
114: .bookkeeping:before { display: block; content: 'Bookkeeping details'; font-weight: bolder; font-style: italic; }
115: .bookkeeping { font-size: 0.8em; margin: 2em 0; }
116: .bookkeeping p { margin: 0.5em 2em; display: list-item; list-style: square; }
117: .bookkeeping dt { margin: 0.5em 2em 0; }
118: .bookkeeping dd { margin: 0 3em 0.5em; }
119:
120: h4 { position: relative; z-index: 3; }
121: h4 + .element, h4 + div + .element { margin-top: -2.5em; padding-top: 2em; }
122: .element {
123: background: #EEEEFF;
124: color: black;
125: margin: 0 0 1em 0.15em;
126: padding: 0 1em 0.25em 0.75em;
127: border-left: solid #9999FF 0.25em;
128: position: relative;
129: z-index: 1;
130: }
131: .element:before {
132: position: absolute;
133: z-index: 2;
134: top: 0;
135: left: -1.15em;
136: height: 2em;
137: width: 0.9em;
138: background: #EEEEFF;
139: content: ' ';
140: border-style: none none solid solid;
141: border-color: #9999FF;
142: border-width: 0.25em;
143: }
144:
145: .example { display: block; color: #222222; background: #FCFCFC; border-left: double; margin-left: 2em; padding-left: 1em; }
146: td > .example:only-child { margin: 0 0 0 0.1em; }
147:
148: ul.domTree, ul.domTree ul { padding: 0 0 0 1em; margin: 0; }
149: ul.domTree li { padding: 0; margin: 0; list-style: none; position: relative; }
150: ul.domTree li li { list-style: none; }
151: ul.domTree li:first-child::before { position: absolute; top: 0; height: 0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
152: ul.domTree li:not(:last-child)::after { position: absolute; top: 0; bottom: -0.6em; left: -0.75em; width: 0.5em; border-style: none none solid solid; content: ''; border-width: 0.1em; }
153: ul.domTree span { font-style: italic; font-family: serif; }
154: ul.domTree .t1 code { color: purple; font-weight: bold; }
155: ul.domTree .t2 { font-style: normal; font-family: monospace; }
156: ul.domTree .t2 .name { color: black; font-weight: bold; }
157: ul.domTree .t2 .value { color: blue; font-weight: normal; }
158: ul.domTree .t3 code, .domTree .t4 code, .domTree .t5 code { color: gray; }
159: ul.domTree .t7 code, .domTree .t8 code { color: green; }
160: ul.domTree .t10 code { color: teal; }
161:
162: body.dfnEnabled dfn { cursor: pointer; }
163: .dfnPanel {
164: display: inline;
165: position: absolute;
166: z-index: 10;
167: height: auto;
168: width: auto;
169: padding: 0.5em 0.75em;
170: font: small sans-serif, Droid Sans Fallback;
171: background: #DDDDDD;
172: color: black;
173: border: outset 0.2em;
174: }
175: .dfnPanel * { margin: 0; padding: 0; font: inherit; text-indent: 0; }
176: .dfnPanel :link, .dfnPanel :visited { color: black; }
177: .dfnPanel p { font-weight: bolder; }
178: .dfnPanel * + p { margin-top: 0.25em; }
179: .dfnPanel li { list-style-position: inside; }
180:
181: #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; }
182: #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; }
183: #configUI p label { display: block; }
184: #configUI #updateUI, #configUI .loginUI { text-align: center; }
185: #configUI input[type=button] { display: block; margin: auto; }
186:
187: fieldset { margin: 1em; padding: 0.5em 1em; }
188: fieldset > legend + * { margin-top: 0; }
189: fieldset > :last-child { margin-bottom: 0; }
190: fieldset p { margin: 0.5em 0; }
191:
1.101 mike 192: .stability {
193: position: fixed;
194: bottom: 0;
195: left: 0; right: 0;
196: margin: 0 auto 0 auto;
197: width: 50%;
198: background: maroon; color: yellow;
199: -webkit-border-radius: 1em 1em 0 0;
200: -moz-border-radius: 1em 1em 0 0;
201: border-radius: 1em 1em 0 0;
202: -moz-box-shadow: 0 0 1em #500;
203: -webkit-box-shadow: 0 0 1em #500;
204: box-shadow: 0 0 1em red;
205: padding: 0.5em 1em;
206: text-align: center;
207: }
208: .stability strong {
209: display: block;
210: }
211: .stability input {
212: appearance: none; margin: 0; border: 0; padding: 0.25em 0.5em; background: transparent; color: black;
213: position: absolute; top: -0.5em; right: 0; font: 1.25em sans-serif; text-align: center;
214: }
215: .stability input:hover {
216: color: white;
217: text-shadow: 0 0 2px black;
218: }
219: .stability input:active {
220: padding: 0.3em 0.45em 0.2em 0.55em;
221: }
222: .stability :link, .stability :visited,
223: .stability :link:hover, .stability :visited:hover {
224: background: transparent;
225: color: white;
226: }
227:
228: </style><style type="text/css">
1.1 mike 229:
230: .applies thead th > * { display: block; }
231: .applies thead code { display: block; }
232: .applies tbody th { whitespace: nowrap; }
233: .applies td { text-align: center; }
234: .applies .yes { background: yellow; }
235:
236: .matrix, .matrix td { border: hidden; text-align: right; }
237: .matrix { margin-left: 2em; }
238:
239: .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; }
240: .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; }
241: .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; }
242:
243: td.eg { border-width: thin; text-align: center; }
244:
245: #table-example-1 { border: solid thin; border-collapse: collapse; margin-left: 3em; }
246: #table-example-1 * { font-family: "Essays1743", serif; line-height: 1.01em; }
247: #table-example-1 caption { padding-bottom: 0.5em; }
248: #table-example-1 thead, #table-example-1 tbody { border: none; }
249: #table-example-1 th, #table-example-1 td { border: solid thin; }
250: #table-example-1 th { font-weight: normal; }
251: #table-example-1 td { border-style: none solid; vertical-align: top; }
252: #table-example-1 th { padding: 0.5em; vertical-align: middle; text-align: center; }
253: #table-example-1 tbody tr:first-child td { padding-top: 0.5em; }
254: #table-example-1 tbody tr:last-child td { padding-bottom: 1.5em; }
255: #table-example-1 tbody td:first-child { padding-left: 2.5em; padding-right: 0; width: 9em; }
256: #table-example-1 tbody td:first-child::after { content: leader(". "); }
257: #table-example-1 tbody td { padding-left: 2em; padding-right: 2em; }
258: #table-example-1 tbody td:first-child + td { width: 10em; }
259: #table-example-1 tbody td:first-child + td ~ td { width: 2.5em; }
260: #table-example-1 tbody td:first-child + td + td + td ~ td { width: 1.25em; }
261:
262: .apple-table-examples { border: none; border-collapse: separate; border-spacing: 1.5em 0em; width: 40em; margin-left: 3em; }
263: .apple-table-examples * { font-family: "Times", serif; }
264: .apple-table-examples td, .apple-table-examples th { border: none; white-space: nowrap; padding-top: 0; padding-bottom: 0; }
265: .apple-table-examples tbody th:first-child { border-left: none; width: 100%; }
266: .apple-table-examples thead th:first-child ~ th { font-size: smaller; font-weight: bolder; border-bottom: solid 2px; text-align: center; }
267: .apple-table-examples tbody th::after, .apple-table-examples tfoot th::after { content: leader(". ") }
268: .apple-table-examples tbody th, .apple-table-examples tfoot th { font: inherit; text-align: left; }
269: .apple-table-examples td { text-align: right; vertical-align: top; }
270: .apple-table-examples.e1 tbody tr:last-child td { border-bottom: solid 1px; }
271: .apple-table-examples.e1 tbody + tbody tr:last-child td { border-bottom: double 3px; }
272: .apple-table-examples.e2 th[scope=row] { padding-left: 1em; }
273: .apple-table-examples sup { line-height: 0; }
274:
275: .details-example img { vertical-align: top; }
276:
277: #base64-table {
278: white-space: nowrap;
279: font-size: 0.6em;
280: column-width: 6em;
281: column-count: 5;
282: column-gap: 1em;
283: -moz-column-width: 6em;
284: -moz-column-count: 5;
285: -moz-column-gap: 1em;
286: -webkit-column-width: 6em;
287: -webkit-column-count: 5;
288: -webkit-column-gap: 1em;
289: }
290: #base64-table thead { display: none; }
291: #base64-table * { border: none; }
292: #base64-table tbody td:first-child:after { content: ':'; }
293: #base64-table tbody td:last-child { text-align: right; }
294:
295: #named-character-references-table {
296: white-space: nowrap;
297: font-size: 0.6em;
298: column-width: 30em;
299: column-gap: 1em;
300: -moz-column-width: 30em;
301: -moz-column-gap: 1em;
302: -webkit-column-width: 30em;
303: -webkit-column-gap: 1em;
304: }
305: #named-character-references-table > table > tbody > tr > td:first-child + td,
306: #named-character-references-table > table > tbody > tr > td:last-child { text-align: center; }
307: #named-character-references-table > table > tbody > tr > td:last-child:hover > span { position: absolute; top: auto; left: auto; margin-left: 0.5em; line-height: 1.2; font-size: 5em; border: outset; padding: 0.25em 0.5em; background: white; width: 1.25em; height: auto; text-align: center; }
308: #named-character-references-table > table > tbody > tr#entity-CounterClockwiseContourIntegral > td:first-child { font-size: 0.5em; }
309:
310: .glyph.control { color: red; }
311:
312: @font-face {
313: font-family: 'Essays1743';
314: src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743.ttf');
315: }
316: @font-face {
317: font-family: 'Essays1743';
318: font-weight: bold;
319: src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-Bold.ttf');
320: }
321: @font-face {
322: font-family: 'Essays1743';
323: font-style: italic;
324: src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-Italic.ttf');
325: }
326: @font-face {
327: font-family: 'Essays1743';
328: font-style: italic;
329: font-weight: bold;
330: src: url('http://www.whatwg.org/specs/web-apps/current-work/fonts/Essays1743-BoldItalic.ttf');
331: }
332:
333: </style><script type="text/javascript">
334: function getCookie(name) {
335: var params = location.search.substr(1).split("&");
336: for (var index = 0; index < params.length; index++) {
337: if (params[index] == name)
338: return "1";
339: var data = params[index].split("=");
340: if (data[0] == name)
341: return unescape(data[1]);
342: }
343: var cookies = document.cookie.split("; ");
344: for (var index = 0; index < cookies.length; index++) {
345: var data = cookies[index].split("=");
346: if (data[0] == name)
347: return unescape(data[1]);
348: }
349: return null;
350: }
351: function load(script) {
352: var e = document.createElement('script');
353: e.setAttribute('src', script + '?' + encodeURIComponent(location) + '&' + encodeURIComponent(document.referrer));
354: document.body.appendChild(e);
355: }
356: function init() {
357: if (location.search == '?slow-browser')
358: return;
359: var configUI = document.createElement('div');
360: configUI.id = 'configUI';
361: document.body.appendChild(configUI);
362: if (document.getElementById('head'))
363: load('toc.js');
364: load('dfn.js');
365: if (getCookie('profile') == '1')
366: document.getElementsByTagName('h2')[0].textContent += '; load: ' + (new Date() - loadTimer) + 'ms';
367: fixBrokenLink();
368: }
1.101 mike 369: </script><script type="text/javascript">
370: function getCookie(name) {
371: var params = location.search.substr(1).split("&");
372: for (var index = 0; index < params.length; index++) {
373: if (params[index] == name)
374: return "1";
375: var data = params[index].split("=");
376: if (data[0] == name)
377: return unescape(data[1]);
378: }
379: var cookies = document.cookie.split("; ");
380: for (var index = 0; index < cookies.length; index++) {
381: var data = cookies[index].split("=");
382: if (data[0] == name)
383: return unescape(data[1]);
384: }
385: return null;
386: }
387: </script><link href="style.css" rel="stylesheet"><link href="http://www.w3.org/StyleSheets/TR/W3C-WD" rel="stylesheet" type="text/css"><script src="link-fixup.js" type="text/javascript"></script><script src="dfn.js" type="text/javascript"></script><script src="toc.js" type="text/javascript"></script><link href="scripting-1.html" rel="prev" title="4.3 Scripting">
1.1 mike 388: <link href="Overview.html#contents" rel="index" title="Table of contents">
1.97 mike 389: <link href="the-noscript-element.html" rel="next" title="4.3.2 The noscript element">
1.101 mike 390: <body class="split chapter" onload="fixBrokenLink(); initToc()"><div class="head" id="head">
1.9 mike 391: <div aria-haspopup="true" id="jumpIndexA-button" role="button" tabindex="0">jump
1.94 mike 392: <div id="jumpIndexA"><ul><li><a class="noindex" href="the-a-element.html#the-a-element">a</a><a class="noindex" href="the-abbr-element.html#the-abbr-element">abbr</a><a class="noindex" href="the-address-element.html#the-address-element">address</a><a class="noindex" href="the-area-element.html#the-area-element">area</a><a class="noindex" href="the-article-element.html#the-article-element">article</a><a class="noindex" href="the-aside-element.html#the-aside-element">aside</a><a class="noindex" href="the-audio-element.html#the-audio-element">audio</a></ul><ul><li><a class="noindex" href="the-b-element.html#the-b-element">b</a><a class="noindex" href="the-base-element.html#the-base-element">base</a><a class="noindex" href="the-bdi-element.html#the-bdi-element">bdi</a><a class="noindex" href="the-bdo-element.html#the-bdo-element">bdo</a><a class="noindex" href="the-blockquote-element.html#the-blockquote-element">blockquote</a><a class="noindex" href="the-body-element.html#the-body-element">body</a><a class="noindex" href="the-br-element.html#the-br-element">br</a><a class="noindex" href="the-button-element.html#the-button-element">button</a></ul><ul><li><a class="noindex" href="the-canvas-element.html#the-canvas-element">canvas</a><a class="noindex" href="the-caption-element.html#the-caption-element">caption</a><a class="noindex" href="the-cite-element.html#the-cite-element">cite</a><a class="noindex" href="the-code-element.html#the-code-element">code</a><a class="noindex" href="the-col-element.html#the-col-element">col</a><a class="noindex" href="the-colgroup-element.html#the-colgroup-element">colgroup</a><a class="noindex" href="the-command-element.html#the-command-element">command</a></ul><ul><li><a class="noindex" href="the-datalist-element.html#the-datalist-element">datalist</a><a class="noindex" href="the-dd-element.html#the-dd-element">dd</a><a class="noindex" href="the-del-element.html#the-del-element">del</a><a class="noindex" href="the-details-element.html#the-details-element">details</a><a class="noindex" href="the-dfn-element.html#the-dfn-element">dfn</a><a class="noindex" href="the-div-element.html#the-div-element">div</a><a class="noindex" href="the-dl-element.html#the-dl-element">dl</a><a class="noindex" href="the-dt-element.html#the-dt-element">dt</a></ul><ul><li><a class="noindex" href="the-em-element.html#the-em-element">em</a><a class="noindex" href="the-embed-element.html#the-embed-element">embed</a><a class="noindex" href="the-fieldset-element.html#the-fieldset-element">fieldset</a><a class="noindex" href="the-figcaption-element.html#the-figcaption-element">figcaption</a><a class="noindex" href="the-figure-element.html#the-figure-element">figure</a><a class="noindex" href="the-footer-element.html#the-footer-element">footer</a><a class="noindex" href="the-form-element.html#the-form-element">form</a></ul><ul><li><a class="noindex" href="the-h1-h2-h3-h4-h5-and-h6-elements.html#the-h1-h2-h3-h4-h5-and-h6-elements">h1</a><a class="noindex" href="the-h1-h2-h3-h4-h5-and-h6-elements.html#the-h1-h2-h3-h4-h5-and-h6-elements">h2</a><a class="noindex" href="the-h1-h2-h3-h4-h5-and-h6-elements.html#the-h1-h2-h3-h4-h5-and-h6-elements">h3</a><a class="noindex" href="the-h1-h2-h3-h4-h5-and-h6-elements.html#the-h1-h2-h3-h4-h5-and-h6-elements">h4</a><a class="noindex" href="the-h1-h2-h3-h4-h5-and-h6-elements.html#the-h1-h2-h3-h4-h5-and-h6-elements">h5</a><a class="noindex" href="the-h1-h2-h3-h4-h5-and-h6-elements.html#the-h1-h2-h3-h4-h5-and-h6-elements">h6</a><a class="noindex" href="the-head-element.html#the-head-element">head</a><a class="noindex" href="the-header-element.html#the-header-element">header</a><a class="noindex" href="the-hgroup-element.html#the-hgroup-element">hgroup</a><a class="noindex" href="the-hr-element.html#the-hr-element">hr</a><a class="noindex" href="the-html-element.html#the-html-element">html</a></ul><ul><li><a class="noindex" href="the-i-element.html#the-i-element">i</a><a class="noindex" href="the-iframe-element.html#the-iframe-element">iframe</a><a class="noindex" href="the-img-element.html#the-img-element">img</a><a class="noindex" href="the-input-element.html#the-input-element">input</a><a class="noindex" href="the-ins-element.html#the-ins-element">ins</a><a class="noindex" href="the-kbd-element.html#the-kbd-element">kbd</a><a class="noindex" href="the-keygen-element.html#the-keygen-element">keygen</a></ul><ul><li><a class="noindex" href="the-label-element.html#the-label-element">label</a><a class="noindex" href="the-legend-element.html#the-legend-element">legend</a><a class="noindex" href="the-li-element.html#the-li-element">li</a><a class="noindex" href="the-link-element.html#the-link-element">link</a><a class="noindex" href="the-map-element.html#the-map-element">map</a><a class="noindex" href="the-mark-element.html#the-mark-element">mark</a><a class="noindex" href="the-menu-element.html#the-menu-element">menu</a><a class="noindex" href="the-meta-element.html#the-meta-element">meta</a><a class="noindex" href="the-meter-element.html#the-meter-element">meter</a></ul><ul><li><a class="noindex" href="the-nav-element.html#the-nav-element">nav</a><a class="noindex" href="the-noscript-element.html#the-noscript-element">noscript</a><a class="noindex" href="the-object-element.html#the-object-element">object</a><a class="noindex" href="the-ol-element.html#the-ol-element">ol</a><a class="noindex" href="the-optgroup-element.html#the-optgroup-element">optgroup</a><a class="noindex" href="the-option-element.html#the-option-element">option</a><a class="noindex" href="the-output-element.html#the-output-element">output</a></ul><ul><li><a class="noindex" href="the-p-element.html#the-p-element">p</a><a class="noindex" href="the-param-element.html#the-param-element">param</a><a class="noindex" href="the-pre-element.html#the-pre-element">pre</a><a class="noindex" href="the-progress-element.html#the-progress-element">progress</a><a class="noindex" href="the-q-element.html#the-q-element">q</a><a class="noindex" href="the-rp-element.html#the-rp-element">rp</a><a class="noindex" href="the-rt-element.html#the-rt-element">rt</a><a class="noindex" href="the-ruby-element.html#the-ruby-element">ruby</a></ul><ul><li><a class="noindex" href="the-s-element.html#the-s-element">s</a><a class="noindex" href="the-samp-element.html#the-samp-element">samp</a><a class="noindex" href="#the-script-element">script</a><a class="noindex" href="the-section-element.html#the-section-element">section</a><a class="noindex" href="the-select-element.html#the-select-element">select</a><a class="noindex" href="the-small-element.html#the-small-element">small</a><a class="noindex" href="the-source-element.html#the-source-element">source</a><a class="noindex" href="the-span-element.html#the-span-element">span</a></ul><ul><li><a class="noindex" href="the-strong-element.html#the-strong-element">strong</a><a class="noindex" href="the-style-element.html#the-style-element">style</a><a class="noindex" href="the-sub-and-sup-elements.html#the-sub-and-sup-elements">sub</a><a class="noindex" href="the-summary-element.html#the-summary-element">summary</a><a class="noindex" href="the-sub-and-sup-elements.html#the-sub-and-sup-elements">sup</a></ul><ul><li><a class="noindex" href="the-table-element.html#the-table-element">table</a><a class="noindex" href="the-tbody-element.html#the-tbody-element">tbody</a><a class="noindex" href="the-td-element.html#the-td-element">td</a><a class="noindex" href="the-textarea-element.html#the-textarea-element">textarea</a><a class="noindex" href="the-tfoot-element.html#the-tfoot-element">tfoot</a><a class="noindex" href="the-th-element.html#the-th-element">th</a><a class="noindex" href="the-thead-element.html#the-thead-element">thead</a><a class="noindex" href="the-time-element.html#the-time-element">time</a><a class="noindex" href="the-title-element.html#the-title-element">title</a></ul><ul><li><a class="noindex" href="the-tr-element.html#the-tr-element">tr</a><a class="noindex" href="the-track-element.html#the-track-element">track</a><a class="noindex" href="the-u-element.html#the-u-element">u</a><a class="noindex" href="the-ul-element.html#the-ul-element">ul</a><a class="noindex" href="the-var-element.html#the-var-element">var</a><a class="noindex" href="the-video-element.html#the-video-element">video</a><a class="noindex" href="the-wbr-element.html#the-wbr-element">wbr</a></ul><ul class="jumpIndexA-other"><li><a class="noindex" href="global-attributes.html#global-attributes">global attributes</a><a class="noindex" href="index-of-terms.html#index-of-terms">terms</a></ul></div></div>
1.11 mike 393: <script src="jump-indexes.js"></script><p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p>
1.1 mike 394:
1.97 mike 395: <h1>HTML5: Edition for Web Authors</h1>
396:
397: </div><div class="prev_next">
398: <a href="scripting-1.html">← 4.3 Scripting</a> –
1.1 mike 399: <a href="Overview.html#contents">Table of contents</a> –
1.97 mike 400: <a href="the-noscript-element.html">4.3.2 The noscript element →</a>
1.102 mike 401: <ol class="toc"><li><ol><li><ol><li><a href="the-script-element.html#the-script-element" id="4.3.1-the-script-element"><span class="secno">4.3.1 </span>The <code>script</code> element</a>
402: <ol><li><a href="the-script-element.html#scriptingLanguages"><span class="secno">4.3.1.1 </span>Scripting languages</a><li><a href="the-script-element.html#restrictions-for-contents-of-script-elements" id="4.3.1.2-restrictions-for-contents-of-script-elements"><span class="secno">4.3.1.2 </span>Restrictions for contents of <code>script</code> elements</a><li><a href="the-script-element.html#inline-documentation-for-external-scripts" id="4.3.1.3-inline-documentation-for-external-scripts"><span class="secno">4.3.1.3 </span>Inline documentation for external scripts</a></ol></ol></ol></ol></div>
1.1 mike 403:
1.97 mike 404: <h4 id="the-script-element"><span class="secno">4.3.1 </span>The <dfn aria-haspopup="true" role="button" tabindex="0"><code>script</code></dfn> element</h4><dl class="element"><dt>Categories</dt>
1.1 mike 405: <dd><a href="content-models.html#metadata-content" id="metadata-content_12">Metadata content</a>.</dd>
406: <dd><a href="content-models.html#flow-content" id="flow-content_11">Flow content</a>.</dd>
407: <dd><a href="content-models.html#phrasing-content" id="phrasing-content_18">Phrasing content</a>.</dd>
408: <dt>Contexts in which this element can be used:</dt>
409: <dd>Where <a href="content-models.html#metadata-content" id="metadata-content_13">metadata content</a> is expected.</dd>
410: <dd>Where <a href="content-models.html#phrasing-content" id="phrasing-content_19">phrasing content</a> is expected.</dd>
411: <dt>Content model:</dt>
412: <dd>If there is no <code title="attr-script-src"><a href="#attr-script-src" id="src_1">src</a></code>
413: attribute, depends on the value of the <code title="attr-script-type"><a href="#attr-script-type" id="type_6">type</a></code> attribute, but must match
414: <a href="#restrictions-for-contents-of-script-elements" id="script-content-restrictions">script content restrictions</a>.</dd>
415: <dd>If there <em>is</em> a <code title="attr-script-src"><a href="#attr-script-src" id="src_2">src</a></code>
416: attribute, the element must be either empty or contain only
417: <a href="#inline-documentation-for-external-scripts" id="script-documentation">script documentation</a> that also matches <a href="#restrictions-for-contents-of-script-elements" id="script-content-restrictions_0">script
418: content restrictions</a>.</dd>
419: <dt>Content attributes:</dt>
1.6 mike 420: <dd><a href="global-attributes.html#global-attributes" id="global-attributes_7">Global attributes</a></dd>
1.1 mike 421: <dd><code title="attr-script-src"><a href="#attr-script-src" id="src_3">src</a></code></dd>
422: <dd><code title="attr-script-async"><a href="#attr-script-async" id="async">async</a></code></dd>
423: <dd><code title="attr-script-defer"><a href="#attr-script-defer" id="defer">defer</a></code></dd>
424: <dd><code title="attr-script-type"><a href="#attr-script-type" id="type_7">type</a></code></dd>
425: <dd><code title="attr-script-charset"><a href="#attr-script-charset" id="charset_10">charset</a></code></dd>
426: <dt>DOM interface:</dt>
427: <dd>
428: <pre class="idl">interface <dfn aria-haspopup="true" id="htmlscriptelement" role="button" tabindex="0">HTMLScriptElement</dfn> : <a href="elements.html#htmlelement" id="htmlelement_14">HTMLElement</a> {
1.92 mike 429: attribute DOMString <a href="#dom-script-src" id="dom-script-src_0" title="dom-script-src">src</a>;
430: attribute boolean <a href="#dom-script-async" id="dom-script-async_0" title="dom-script-async">async</a>;
431: attribute boolean <a href="#dom-script-defer" id="dom-script-defer_0" title="dom-script-defer">defer</a>;
432: attribute DOMString <a href="#dom-script-type" id="dom-script-type_0" title="dom-script-type">type</a>;
433: attribute DOMString <a href="#dom-script-charset" id="dom-script-charset_0" title="dom-script-charset">charset</a>;
1.91 mike 434: attribute DOMString <a href="#dom-script-text" title="dom-script-text">text</a>;
1.1 mike 435: };</pre>
436: </dd>
437: </dl><p>The <code><a href="#the-script-element" id="script_14">script</a></code> element allows authors to include dynamic
438: script and data blocks in their documents. The element does not
1.104 ! mike 439: <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/rendering.html#represents" title='Read about this "represent" reference in the full HTML5 spec.'>represent</a> content for the user.<p>When used to include dynamic scripts, the scripts may either be
1.1 mike 440: embedded inline or may be imported from an external file using the
441: <code title="attr-script-src"><a href="#attr-script-src" id="src_4">src</a></code> attribute. If the language
442: is not that described by "<code title="">text/javascript</code>",
443: then the <code title="attr-script-type"><a href="#attr-script-type" id="type_8">type</a></code> attribute must
444: be present, as described below. Whatever language is used, the
445: contents of the <code><a href="#the-script-element" id="script_15">script</a></code> element must conform with the
446: requirements of that language's specification.<p>When used to include data blocks (as opposed to scripts), the
447: data must be embedded inline, the format of the data must be given
448: using the <code title="attr-script-type"><a href="#attr-script-type" id="type_9">type</a></code> attribute, the
449: <code title="attr-script-src"><a href="#attr-script-src" id="src_5">src</a></code> attribute must not be
450: specified, and the contents of the <code><a href="#the-script-element" id="script_16">script</a></code> element must
451: conform to the requirements defined for the format used.<p>The <dfn aria-haspopup="true" id="attr-script-type" role="button" tabindex="0"><code>type</code></dfn>
452: attribute gives the language of the script or format of the data. If
453: the attribute is present, its value must be a <a href="infrastructure.html#valid-mime-type" id="valid-mime-type_3">valid MIME
454: type</a>. The <code title="">charset</code> parameter must not be
455: specified. The default, which is used if the attribute is absent,
456: is "<code title="">text/javascript</code>".<p>The <dfn aria-haspopup="true" id="attr-script-src" role="button" tabindex="0"><code>src</code></dfn>
457: attribute, if specified, gives the address of the external script
458: resource to use. The value of the attribute must be a <a href="urls.html#valid-non-empty-url-potentially-surrounded-by-spaces" id="valid-non-empty-url-potentially-surrounded-by-spaces_2">valid
459: non-empty URL potentially surrounded by spaces</a> identifying a
460: script resource of the type given by the <code title="attr-script-type"><a href="#attr-script-type" id="type_10">type</a></code> attribute, if the attribute is
461: present, or of the type "<code title="">text/javascript</code>", if
462: the attribute is absent. A resource is a script resource of a given
463: type if that type identifies a scripting language and the resource
464: conforms with the requirements of that language's specification.<p>The <dfn aria-haspopup="true" id="attr-script-charset" role="button" tabindex="0"><code>charset</code></dfn>
465: attribute gives the character encoding of the external script
466: resource. The attribute must not be specified if the <code title="attr-script-src"><a href="#attr-script-src" id="src_6">src</a></code> attribute is not present. If the
467: attribute is set, its value must be a valid character encoding name,
468: must be an <a href="infrastructure.html#ascii-case-insensitive" id="ascii-case-insensitive_10">ASCII case-insensitive</a> match for the
469: <a href="infrastructure.html#preferred-mime-name" id="preferred-mime-name_1">preferred MIME name</a> for that encoding, and must match
470: the encoding given in the <code title="">charset</code> parameter of
1.104 ! mike 471: the <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/fetching-resources.html#content-type" title='Read about this "Content-Type metadata" reference in the full HTML5 spec.'>Content-Type metadata</a> of the
1.1 mike 472: external file, if any. <a href="references.html#refsIANACHARSET">[IANACHARSET]</a><p>The <dfn aria-haspopup="true" id="attr-script-async" role="button" tabindex="0"><code>async</code></dfn> and
473: <dfn aria-haspopup="true" id="attr-script-defer" role="button" tabindex="0"><code>defer</code></dfn> attributes
474: are <a href="common-microsyntaxes.html#boolean-attribute" id="boolean-attribute_1" title="boolean attribute">boolean attributes</a> that
475: indicate how the script should be executed. The <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_0">defer</a></code> and <code title="attr-script-async"><a href="#attr-script-async" id="async_0">async</a></code> attributes must not be
476: specified if the <code title="attr-script-src"><a href="#attr-script-src" id="src_7">src</a></code> attribute
477: is not present.<p>There are three possible modes that can be selected using these
478: attributes. If the <code title="attr-script-async"><a href="#attr-script-async" id="async_1">async</a></code>
479: attribute is present, then the script will be executed
480: asynchronously, as soon as it is available. If the <code title="attr-script-async"><a href="#attr-script-async" id="async_2">async</a></code> attribute is not present but
481: the <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_1">defer</a></code> attribute is
482: present, then the script is executed when the page has finished
483: parsing. If neither attribute is present, then the script is
484: fetched and executed immediately, before the user agent continues
485: parsing the page.<p class="note">The exact processing details for these attributes
486: are, for mostly historical reasons, somewhat non-trivial, involving
487: a number of aspects of HTML. The implementation requirements are
488: therefore by necessity scattered throughout the specification. The
489: algorithms below (in this section) describe the core of this
490: processing, but these algorithms reference and are referenced by the
1.104 ! mike 491: parsing rules for <code><a href="#the-script-element" id="script_17">script</a></code> <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/tree-construction.html#scriptTag" title='Read about this "start" reference in the full HTML5 spec.'>start</a>
! 492: and <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/tree-construction.html#scriptEndTag" title='Read about this "end" reference in the full HTML5 spec.'>end</a> tags in HTML, <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/tree-construction.html#scriptForeignEndTag" title='Read about this "in foreign content" reference in the full HTML5 spec.'>in foreign content</a>, and <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/the-xhtml-syntax.html#scriptTagXML" title='Read about this "in XML" reference in the full HTML5 spec.'>in XML</a>, the rules for the <code title="dom-document-write"><a href="apis-in-html-documents.html#dom-document-write">document.write()</a></code> method, the
1.1 mike 493: handling of <a href="webappapis.html#scripting">scripting</a>, etc.<p>The <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_2">defer</a></code> attribute may be
494: specified even if the <code title="attr-script-async"><a href="#attr-script-async" id="async_3">async</a></code>
495: attribute is specified, to cause legacy Web browsers that only
496: support <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_3">defer</a></code> (and not <code title="attr-script-async"><a href="#attr-script-async" id="async_4">async</a></code>) to fall back to the <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_4">defer</a></code> behavior instead of the
497: synchronous blocking behavior that is the default.<p>Changing the <code title="attr-script-src"><a href="#attr-script-src" id="src_8">src</a></code>, <code title="attr-script-type"><a href="#attr-script-type" id="type_11">type</a></code>, <code title="attr-script-charset"><a href="#attr-script-charset" id="charset_11">charset</a></code>, <code title="attr-script-async"><a href="#attr-script-async" id="async_5">async</a></code>, and <code title="attr-script-defer"><a href="#attr-script-defer" id="defer_5">defer</a></code> attributes dynamically has no
498: direct effect; these attribute are only used at specific times
1.102 mike 499: described below.</p>
500: <p>The IDL attributes <dfn aria-haspopup="true" id="dom-script-src" role="button" tabindex="0"><code>src</code></dfn>, <dfn aria-haspopup="true" id="dom-script-type" role="button" tabindex="0"><code>type</code></dfn>, <dfn aria-haspopup="true" id="dom-script-charset" role="button" tabindex="0"><code>charset</code></dfn>, and <dfn aria-haspopup="true" id="dom-script-defer" role="button" tabindex="0"><code>defer</code></dfn>, each must
1.92 mike 501: <a href="common-dom-interfaces.html#reflect" id="reflect_13">reflect</a> the respective content attributes of the same
1.102 mike 502: name.</p>
503:
504: <p>The <dfn aria-haspopup="true" id="dom-script-async" role="button" tabindex="0"><code>async</code></dfn> IDL
1.92 mike 505: attribute controls whether the element will execute asynchronously
1.104 ! mike 506: or not. If the element's <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/scripting-1.html#force-async" title='Read about this ""force-async"" reference in the full HTML5 spec.'>"force-async"</a> flag is set,
1.92 mike 507: then, on getting, the <code title="dom-script-async"><a href="#dom-script-async" id="async_8">async</a></code>
508: IDL attribute must return true, and on setting, the
1.104 ! mike 509: <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/scripting-1.html#force-async" title='Read about this ""force-async"" reference in the full HTML5 spec.'>"force-async"</a> flag must first be unset, and then the
1.92 mike 510: content attribute must be removed if the IDL attribute's new value
511: is false, and must be set to the empty string if the IDL attribute's
1.104 ! mike 512: new value is true. If the element's <a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/scripting-1.html#force-async" title='Read about this ""force-async"" reference in the full HTML5 spec.'>"force-async"</a> flag
1.92 mike 513: is <em>not</em> set, the IDL attribute must <a href="common-dom-interfaces.html#reflect" id="reflect_14">reflect</a> the
1.102 mike 514: <code title="attr-script-async"><a href="#attr-script-async" id="async_6">async</a></code> content attribute.</p>
515: <dl class="domintro"><dt><var title="">script</var> . <code id="dom-script-text" title="dom-script-text"><a href="#dom-script-text">text</a></code> [ = <var title="">value</var> ]</dt>
1.1 mike 516:
517: <dd>
518:
519: <p>Returns the contents of the element, ignoring child nodes that
520: aren't <a href="infrastructure.html#text-node" id="text-node_11" title="text node">text nodes</a>.</p>
521:
522: <p>Can be set, to replace the element's children with the given
523: value.</p>
524:
525: </dd>
526:
1.91 mike 527: </dl><p class="note">When inserted using the <code title="dom-document-write"><a href="apis-in-html-documents.html#dom-document-write">document.write()</a></code> method,
1.1 mike 528: <code><a href="#the-script-element" id="script_18">script</a></code> elements execute (typically synchronously), but
529: when inserted using <code title="dom-innerHTML"><a href="apis-in-html-documents.html#dom-innerhtml" id="innerhtml_3">innerHTML</a></code> and <code title="dom-outerHTML"><a href="apis-in-html-documents.html#dom-outerhtml" id="outerhtml_2">outerHTML</a></code> attributes, they do not
530: execute at all.<div class="example">
531:
532: <p>In this example, two <code><a href="#the-script-element" id="script_19">script</a></code> elements are used. One
533: embeds an external script, and the other includes some data.</p>
534:
535: <pre><script src="game-engine.js"></script>
536: <script type="text/x-game-map">
537: ........U.........e
538: o............A....e
539: .....A.....AAA....e
540: .A..AAA...AAAAA...e
541: </script></pre>
542:
543: <p>The data in this case might be used by the script to generate
544: the map of a video game. The data doesn't have to be used that way,
545: though; maybe the map data is actually embedded in other parts of
546: the page's markup, and the data block here is just used by the
547: site's search engine to help users who are looking for particular
548: features in their game maps.</p>
549:
550: </div><div class="example">
551:
552: <p>The following sample shows how a script element can be used to
553: define a function that is then used by other parts of the
554: document. It also shows how a <code><a href="#the-script-element" id="script_20">script</a></code> element can be
555: used to invoke script while the document is being parsed, in this
556: case to initialize the form's output.</p>
557:
558: <pre><script>
559: function calculate(form) {
560: var price = 52000;
561: if (form.elements.brakes.checked)
562: price += 1000;
563: if (form.elements.radio.checked)
564: price += 2500;
565: if (form.elements.turbo.checked)
566: price += 5000;
567: if (form.elements.sticker.checked)
568: price += 250;
569: form.elements.result.value = price;
570: }
571: </script>
572: <form name="pricecalc" onsubmit="return false" onchange="calculate(this)">
573: <fieldset>
574: <legend>Work out the price of your car</legend>
575: <p>Base cost: £52000.</p>
576: <p>Select additional options:</p>
577: <ul>
578: <li><label><input type=checkbox name=brakes> Ceramic brakes (£1000)</label></li>
579: <li><label><input type=checkbox name=radio> Satellite radio (£2500)</label></li>
580: <li><label><input type=checkbox name=turbo> Turbo charger (£5000)</label></li>
581: <li><label><input type=checkbox name=sticker> "XZ" sticker (£250)</label></li>
582: </ul>
583: <p>Total: £<output name=result></output></p>
584: </fieldset>
585: <script>
586: calculate(document.forms.pricecalc);
587: </script>
588: </form></pre>
589:
1.97 mike 590: </div><h5 id="scriptingLanguages"><span class="secno">4.3.1.1 </span>Scripting languages</h5><p>The following lists some <a href="infrastructure.html#mime-type" id="mime-type_4">MIME type</a> strings and the
1.1 mike 591: languages to which they refer:<dl><dt>"<code>application/ecmascript</code>"</dt>
592: <dt>"<code>application/javascript</code>"</dt>
593: <dt>"<code>application/x-ecmascript</code>"</dt>
594: <dt>"<code>application/x-javascript</code>"</dt>
595: <dt>"<code>text/ecmascript</code>"</dt>
596: <dt>"<code>text/javascript</code>"</dt>
597: <dt>"<code>text/javascript1.0</code>"</dt>
598: <dt>"<code>text/javascript1.1</code>"</dt>
599: <dt>"<code>text/javascript1.2</code>"</dt>
600: <dt>"<code>text/javascript1.3</code>"</dt>
601: <dt>"<code>text/javascript1.4</code>"</dt>
602: <dt>"<code>text/javascript1.5</code>"</dt>
603: <dt>"<code>text/jscript</code>"</dt>
604: <dt>"<code>text/livescript</code>"</dt>
605: <dt>"<code>text/x-ecmascript</code>"</dt>
606: <dt>"<code>text/x-javascript</code>"</dt>
607: <dd>JavaScript. <a href="references.html#refsECMA262">[ECMA262]</a></dd>
608:
609: <dt>"<code>text/javascript;e4x=1</code>"</dt>
610: <dd>JavaScript with ECMAScript for XML. <a href="references.html#refsECMA357">[ECMA357]</a></dd>
611:
1.104 ! mike 612: </dl><h5 id="restrictions-for-contents-of-script-elements"><span class="secno">4.3.1.2 </span><dfn aria-haspopup="true" role="button" tabindex="0">Restrictions for contents of <code>script</code> elements</dfn></h5><p>The <code><a class="full-spec-link" href="http://www.w3.org/TR/2011/WD-html5-20110525/infrastructure.html#textcontent" title='Read about this "textContent" reference in the full HTML5 spec.'>textContent</a></code> of a <code><a href="#the-script-element" id="script_21">script</a></code> element
1.1 mike 613: must match the <code title="">script</code> production in the
614: following ABNF, the character set for which is Unicode. <a href="references.html#refsABNF">[ABNF]</a><pre>script = data1 *( escape [ script-start data3 ] "-->" data1 ) [ escape ]
615: escape = "<!--" data2 *( script-start data3 script-end data2 )
616:
617: data1 = <any string that doesn't contain a substring that matches not-data1>
618: not-data1 = "<!--"
619:
620: data2 = <any string that doesn't contain a substring that matches not-data2>
621: not-data2 = script-start / "-->"
622:
623: data3 = <any string that doesn't contain a substring that matches not-data3>
624: not-data3 = script-end / "-->"
625:
626: script-start = lt s c r i p t tag-end
627: script-end = lt slash s c r i p t tag-end
628:
629: lt = %x003C ; U+003C LESS-THAN SIGN character (<)
630: slash = %x002F ; U+002F SOLIDUS character (/)
631:
632: s = %x0053 ; U+0053 LATIN CAPITAL LETTER S
633: s =/ %x0073 ; U+0073 LATIN SMALL LETTER S
634: c = %x0043 ; U+0043 LATIN CAPITAL LETTER C
635: c =/ %x0063 ; U+0063 LATIN SMALL LETTER C
636: r = %x0052 ; U+0052 LATIN CAPITAL LETTER R
637: r =/ %x0072 ; U+0072 LATIN SMALL LETTER R
638: i = %x0049 ; U+0049 LATIN CAPITAL LETTER I
639: i =/ %x0069 ; U+0069 LATIN SMALL LETTER I
640: p = %x0050 ; U+0050 LATIN CAPITAL LETTER P
641: p =/ %x0070 ; U+0070 LATIN SMALL LETTER P
642: t = %x0054 ; U+0054 LATIN CAPITAL LETTER T
643: t =/ %x0074 ; U+0074 LATIN SMALL LETTER T
644:
1.3 mike 645: tag-end = %x0009 ; U+0009 CHARACTER TABULATION (tab)
1.1 mike 646: tag-end =/ %x000A ; U+000A LINE FEED (LF)
647: tag-end =/ %x000C ; U+000C FORM FEED (FF)
648: tag-end =/ %x0020 ; U+0020 SPACE
649: tag-end =/ %x002F ; U+002F SOLIDUS (/)
650: tag-end =/ %x003E ; U+003E GREATER-THAN SIGN (>)</pre><p>When a <code><a href="#the-script-element" id="script_22">script</a></code> element contains <a href="#inline-documentation-for-external-scripts" id="script-documentation_0">script
651: documentation</a>, there are further restrictions on the contents
1.97 mike 652: of the element, as described in the section below.<h5 id="inline-documentation-for-external-scripts"><span class="secno">4.3.1.3 </span><dfn aria-haspopup="true" role="button" tabindex="0">Inline documentation for external scripts</dfn></h5><p>If a <code><a href="#the-script-element" id="script_23">script</a></code> element's <code title="attr-script-src"><a href="#attr-script-src" id="src_9">src</a></code> attribute is specified, then the
1.1 mike 653: contents of the <code><a href="#the-script-element" id="script_24">script</a></code> element, if any, must be such
1.91 mike 654: that the value of the <code title="dom-script-text"><a href="#dom-script-text">text</a></code> IDL
1.1 mike 655: attribute, which is derived from the element's contents, matches the
656: <code title="">documentation</code> production in the following
657: ABNF, the character set for which is Unicode. <a href="references.html#refsABNF">[ABNF]</a><pre>documentation = *( *( space / tab / comment ) [ line-comment ] newline )
658: comment = slash star *( not-star / star not-slash ) 1*star slash
659: line-comment = slash slash *not-newline
660:
661: ; characters
1.3 mike 662: tab = %x0009 ; U+0009 CHARACTER TABULATION (tab)
1.1 mike 663: newline = %x000A ; U+000A LINE FEED (LF)
664: space = %x0020 ; U+0020 SPACE
665: star = %x002A ; U+002A ASTERISK (*)
666: slash = %x002F ; U+002F SOLIDUS (/)
667: not-newline = %x0000-0009 / %x000B-10FFFF
1.101 mike 668: ; a Unicode character other than U+000A LINE FEED (LF)
1.1 mike 669: not-star = %x0000-0029 / %x002B-10FFFF
1.101 mike 670: ; a Unicode character other than U+002A ASTERISK (*)
1.1 mike 671: not-slash = %x0000-002E / %x0030-10FFFF
1.101 mike 672: ; a Unicode character other than U+002F SOLIDUS (/)</pre><p class="note">This corresponds to putting the contents of the
1.1 mike 673: element in JavaScript comments.<p class="note">This requirement is in addition to the earlier
674: restrictions on the syntax of contents of <code><a href="#the-script-element" id="script_25">script</a></code>
675: elements.<div class="example">
676:
677: <p>This allows authors to include documentation, such as license
678: information or API information, inside their documents while still
679: referring to external script files. The syntax is constrained so
680: that authors don't accidentally include what looks like valid
681: script while also providing a <code title="attr-script-src"><a href="#attr-script-src" id="src_10">src</a></code> attribute.</p>
682:
683: <pre><script src="cool-effects.js">
684: // create new instances using:
685: // var e = new Effect();
686: // start the effect using .play, stop using .stop:
687: // e.play();
688: // e.stop();
689: </script></pre>
690:
691: </div>
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