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69 lines
No EOL
3.5 KiB
HTML
69 lines
No EOL
3.5 KiB
HTML
<!DOCTYPE html>
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<html lang='en'><head><meta http-equiv='content-type' content='text/html; charset=UTF-8' /></head><body>
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<div data-role="page">
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<div data-role="header">
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<h1>.insertBefore()</h1>
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</div>
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<div data-role="content" class=" ui-body ui-body-c" id="insertBefore1">
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<h2 class="jq-clearfix roundTop section-title">
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<span class="name">.insertBefore( target )</span> <span class="returns">Returns: <a class="return" href="http://docs.jquery.com/Types#jQuery">jQuery</a></span>
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</h2>
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<div class=" entry-details">
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<p class="desc"><strong>Description: </strong>Insert every element in the set of matched elements before the target.</p>
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<ul class="signatures"><li class="signature" id="insertBefore-target">
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<h4 class="name">
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<span class="versionAdded">version added: <a href="/category/version/1.0/">1.0</a></span>.insertBefore( target )</h4>
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<p class="arguement"><strong>target</strong>Content after which the selected element(s) is inserted.</p>
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</li></ul>
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<div class="longdesc">
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<p>The <code><a href="/before">.before()</a></code> and <code>.insertBefore()</code> methods perform the same task. The major difference is in the syntax-specifically, in the placement of the content and target. With<code> .before()</code>, the selector expression preceding the method is the container before which the content is inserted. With <code>.insertBefore()</code>, on the other hand, the content precedes the method, either as a selector expression or as markup created on the fly, and it is inserted before the target container.</p>
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<p>Consider the following HTML:</p>
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<pre><div class="container">
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<h2>Greetings</h2>
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<div class="inner">Hello</div>
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<div class="inner">Goodbye</div>
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</div></pre>
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<p>We can create content and insert it before several elements at once:</p>
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<pre>$('<p>Test</p>').insertBefore('.inner');</pre>
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<p>Each inner <code><div></code> element gets this new content:</p>
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<pre><div class="container">
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<h2>Greetings</h2>
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<p>Test</p>
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<div class="inner">Hello</div>
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<p>Test</p>
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<div class="inner">Goodbye</div>
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</div></pre>
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<p>We can also select an element on the page and insert it before another:</p>
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<pre>$('h2').insertBefore($('.container'));</pre>
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<p>If an element selected this way is inserted elsewhere, it will be moved before the target (not cloned):</p>
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<pre><h2>Greetings</h2>
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<div class="container">
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<div class="inner">Hello</div>
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<div class="inner">Goodbye</div>
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</div></pre>
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<p>If there is more than one target element, however, cloned copies of the inserted element will be created for each target after the first.</p>
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</div>
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<h3>Example:</h3>
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<div id="entry-examples" class="entry-examples"><div id="example-0">
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<h4><span class="desc">Inserts all paragraphs before an element with id of "foo". Same as $("#foo").before("p")</span></h4>
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<pre><code class="example demo-code"><!DOCTYPE html>
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<html>
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<head>
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<style>#foo { background:yellow; }</style>
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<script src="http://code.jquery.com/jquery-latest.js"></script>
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</head>
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<body>
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<div id="foo">FOO!</div><p>I would like to say: </p>
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<script>$("p").insertBefore("#foo"); // check before() examples</script>
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</body>
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</html></code></pre>
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<h4>Demo:</h4>
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<div class="demo code-demo"></div>
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</div></div>
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</div>
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</div>
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</div>
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</body></html> |