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fofolee
69 lines
3.7 KiB
HTML
69 lines
3.7 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">.jquery</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/internals/">内部函数</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/properties/">内部属性</a> > <a href="/category/properties/jquery-object-instance-properties/">jQuery 对象实例的属性</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/jquery-2/" target="_blank">.jquery</a></span>
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</div><!-- .entry-meta -->
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</header><!-- .entry-header -->
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<!-- .entry-header -->
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<div class="entry-content">
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<article class="entry property" id="jquery1"><h2 class="section-title">
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<span>jquery</span><span class="returns">返回: <a href="/Types/#String">String</a></span>
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</h2>
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<div class="entry-wrapper">
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<p class="desc"><strong>描述: </strong>一个包含了jQuery版本号的字符串。</p>
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<ul class="signatures"><li class="signature"><h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.0/">1.0</a></span>jquery</h4></li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p>
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<code>.jquery</code>原型指向jQuery的原型， 通常被称为它的别名<code>$.fn</code>。它是一个字符串，其中包含的jQuery的版本号，如“1.5.0”或“1.4.4”。
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</p>
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</div>
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<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
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<h4>Example: <span class="desc">Determine if an object is a jQuery object</span>
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</h4>
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<div class="syntaxhighlighter javascript ">
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<table>
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<tbody>
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<td class="gutter">
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<div class="line n1">1</div>
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<div class="line n2">2</div>
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<div class="line n10">10</div>
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</td>
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<td class="code">
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<pre><div class="container"><div class="line"><code><span class="keyword">var</span> a = { what: <span class="string">"A regular JS object"</span> },</code></div></div><div class="container"><div class="line"><code> b = $(<span class="string">'body'</span>);</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="keyword">if</span> ( a.jquery ) { <span class="comment">// falsy, since it's undefined</span></code></div></div><div class="container"><div class="line"><code> alert(<span class="string">' a is a jQuery object! '</span>);</code></div></div><div class="container"><div class="line"><code>}</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="keyword">if</span> ( b.jquery ) { <span class="comment">// truthy, since it's a string</span></code></div></div><div class="container"><div class="line"><code> alert(<span class="string">' b is a jQuery object! '</span>);</code></div></div><div class="container"><div class="line"><code>}</code></div></div></pre>
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</td>
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</tbody>
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</table>
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</div>
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</div>
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<div class="entry-example" id="example-1">
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<h4>Example: <span class="desc">Get the current version of jQuery running on the page</span>
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</h4>
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<div class="syntaxhighlighter javascript ">
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<table>
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<div class="line n1">1</div>
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</td>
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<td class="code">
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<pre><div class="container"><div class="line"><code>alert( <span class="string">'You are running jQuery version: '</span> + $.fn.jquery );</code></div></div></pre>
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</td>
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</tbody>
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</table>
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</div>
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</div></section>
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</div></article> </div>
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</article> |