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b11a45f615
Inset listviews have no margin now, and regular listviews have -15px margins. Also, collapsibles now have no padding. Updated HTML to remove ui-body classes for content divs, to match these changes. Fixes #161
105 lines
No EOL
4.1 KiB
HTML
105 lines
No EOL
4.1 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>.prev()</h1>
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</div>
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<div data-role="content" data-theme="c" id="prev1">
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<h2 class="jq-clearfix roundTop section-title">
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<span class="name">.prev( [ selector ] )</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>Get the immediately preceding sibling of each element in the set of matched elements, optionally filtered by a selector.</p>
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<ul class="signatures"><li class="signature" id="prev-selector">
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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>.prev( [ selector ] )</h4>
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<p class="arguement"><strong>selector</strong>A string containing a selector expression to match elements against.</p>
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</li></ul>
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<div class="longdesc">
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<p>Given a jQuery object that represents a set of DOM elements, the <code>.prev()</code> method allows us to search through the predecessors of these elements in the DOM tree and construct a new jQuery object from the matching elements.</p>
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<p>The method optionally accepts a selector expression of the same type that we can pass to the <code>$()</code> function. If the selector is supplied, the elements will be filtered by testing whether they match it.</p>
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<p>Consider a page with a simple list on it:</p>
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<pre>
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<ul>
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<li>list item 1</li>
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<li>list item 2</li>
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<li class="third-item">list item 3</li>
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<li>list item 4</li>
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<li>list item 5</li>
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</ul>
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</pre>
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<p>If we begin at the third item, we can find the element which comes just before it:</p>
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<pre>$('li.third-item').prev().css('background-color', 'red');</pre>
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<p>The result of this call is a red background behind item 2. Since we do not supply a selector expression, this preceding element is unequivocally included as part of the object. If we had supplied one, the element would be tested for a match before it was included.</p>
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</div>
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<h3>Examples:</h3>
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<div id="entry-examples" class="entry-examples">
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<div id="example-0">
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<h4>Example: <span class="desc">Find the very previous sibling of each div.</span>
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</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>
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div { width:40px; height:40px; margin:10px;
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float:left; border:2px blue solid;
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padding:2px; }
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span { font-size:14px; }
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p { clear:left; margin:10px; }
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</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></div>
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<div></div>
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<div><span>has child</span></div>
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<div></div>
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<div></div>
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<div></div>
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<div id="start"></div>
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<div></div>
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<p><button>Go to Prev</button></p>
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<script>
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var $curr = $("#start");
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$curr.css("background", "#f99");
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$("button").click(function () {
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$curr = $curr.prev();
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$("div").css("background", "");
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$curr.css("background", "#f99");
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});
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</script>
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</body>
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</html></code></pre>
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<h4>Demo:</h4>
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<div class="demo code-demo"></div>
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</div>
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<div id="example-1">
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<h4>Example: <span class="desc">For each paragraph, find the very previous sibling that has a class "selected".</span>
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</h4>
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<pre><code class="example demo-code"><!DOCTYPE html>
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<html>
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<head>
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<script src="http://code.jquery.com/jquery-latest.js"></script>
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</head>
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<body>
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<div><span>Hello</span></div>
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<p class="selected">Hello Again</p>
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<p>And Again</p>
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<script>$("p").prev(".selected").css("background", "yellow");</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>
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</div>
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</div>
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</div>
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</div>
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</body></html> |