mirror of
https://github.com/Hopiu/jquery-mobile.git
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125 lines
No EOL
5.6 KiB
HTML
125 lines
No EOL
5.6 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 class="ui-page">
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<div class="ui-header">
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<h1>.height()</h1>
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</div>
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<div class="ui-content ui-body ui-body-c" id="height1">
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<h2 class="jq-clearfix roundTop section-title">
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<span class="name">.height()</span> <span class="returns">Returns: <a class="return" href="http://docs.jquery.com/Types#Integer">Integer</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 current computed height for the first element in the set of matched elements.</p>
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<ul class="signatures"><li class="signature" id="height"><h4 class="name">
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<span class="versionAdded">version added: <a href="/category/version/1.0/">1.0</a></span>.height()</h4></li></ul>
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<div class="longdesc">
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<p>The difference between <code>.css('height')</code> and <code>.height()</code> is that the latter returns a unit-less pixel value (for example, <code>400</code>) while the former returns a value with units intact (for example, <code>400px</code>). The <code>.height()</code> method is recommended when an element's height needs to be used in a mathematical calculation.</p>
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<p class="image"><img src="http://api.jquery.com/images/0042_04_01.png"></p>
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<p>This method is also able to find the height of the window and document.</p>
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<pre>$(window).height(); // returns height of browser viewport
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$(document).height(); // returns height of HTML document</pre>
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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">Show various heights. Note the values are from the iframe so might be smaller than you expected. The yellow highlight shows the iframe body.</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>
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body { background:yellow; }
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button { font-size:12px; margin:2px; }
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p { width:150px; border:1px red solid; }
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div { color:red; font-weight:bold; }
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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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<button id="getp">Get Paragraph Height</button>
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<button id="getd">Get Document Height</button>
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<button id="getw">Get Window Height</button>
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<div>&nbsp;</div>
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<p>
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Sample paragraph to test height
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</p>
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<script>
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function showHeight(ele, h) {
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$("div").text("The height for the " + ele +
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" is " + h + "px.");
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}
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$("#getp").click(function () {
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showHeight("paragraph", $("p").height());
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});
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$("#getd").click(function () {
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showHeight("document", $(document).height());
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});
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$("#getw").click(function () {
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showHeight("window", $(window).height());
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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></div>
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</div>
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</div>
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<div class="ui-content ui-body ui-body-c" id="height2">
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<h2 class="jq-clearfix roundTop section-title">
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<span class="name">.height( value )</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>Set the CSS height of every matched element.</p>
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<ul class="signatures">
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<li class="signature" id="height-value">
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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>.height( value )</h4>
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<p class="arguement"><strong>value</strong>An integer representing the number of pixels, or an integer with an optional unit of measure appended (as a string).</p>
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</li>
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<li class="signature" id="height-functionindex, height">
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<h4 class="name">
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<span class="versionAdded">version added: <a href="/category/version/1.4.1/">1.4.1</a></span>.height( function(index, height) )</h4>
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<p class="arguement"><strong>function(index, height)</strong>A function returning the height to set. Receives the index position of the element in the set and the old height as arguments.</p>
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</li>
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</ul>
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<div class="longdesc">
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<p>When calling <code>.height(value)</code>, the value can be either a string (number and unit) or a number. If only a number is provided for the value, jQuery assumes a pixel unit. If a string is provided, however, any valid CSS measurement may be used for the height (such as <code>100px</code>, <code>50%</code>, or <code>auto</code>). Note that in modern browsers, the CSS height property does not include padding, border, or margin.</p>
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<p>If no explicit unit was specified (like 'em' or '%') then "px" is concatenated to the value.</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">To set the height of each div on click to 30px plus a color change.</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>div { width:50px; height:70px; float:left; margin:5px;
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background:rgb(255,140,0); cursor:pointer; } </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></div>
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<div></div>
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<div></div>
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<script>$("div").one('click', function () {
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$(this).height(30)
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.css({cursor:"auto", backgroundColor:"green"});
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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></div>
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</div>
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</div>
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</div>
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</body></html> |