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58 lines
4.3 KiB
HTML
58 lines
4.3 KiB
HTML
<article class="" id="post-">
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<h1 class="entry-title">callbacks.disabled()</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/callbacks-object/">回调对象</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/callbacks.disabled/" target="_blank">callbacks.disabled()</a></span>
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</div><!-- .entry-meta -->
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</header><!-- .entry-header -->
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<div class="entry-content">
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<article class="entry method" id="callbacks-disabled1"><h2 class="section-title">
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<span class="name">callbacks.disabled()</span><span class="returns">返回: <a href="/Types/#Boolean">Boolean</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>确定回调列表是否已被禁用。</p>
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<ul class="signatures"><li class="signature" id="callbacks-disabled">
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<h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.7/">1.7</a></span>callbacks.disabled()</h4>
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<ul><li><div class="null-signature">这个方法不接受任何参数</div></li></ul>
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</li></ul>
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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><span class="desc">使用<code>callbacks.disabled()</code>确定回调列表是否已被禁用:</span></h4>
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<div class="syntaxhighlighter javascript ">
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<pre><div class="container"><div class="line"><code><span class="comment">// a sample logging function to be added to a callbacks list</span></code></div></div><div class="container"><div class="line"><code> <span class="keyword">var</span> foo = <span class="keyword">function</span>( value ) {</code></div></div><div class="container"><div class="line"><code> console.log( <span class="string">"foo:"</span> + value );</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">var</span> callbacks = $.Callbacks();</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="comment">// add the logging function to the callback list</span></code></div></div><div class="container"><div class="line"><code> callbacks.add( foo );</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="comment">// fire the items on the list, passing an argument</span></code></div></div><div class="container"><div class="line"><code> callbacks.fire( <span class="string">"hello"</span> );</code></div></div><div class="container"><div class="line"><code> <span class="comment">// outputs "foo: hello"</span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="comment">// disable the callbacks list</span></code></div></div><div class="container"><div class="line"><code> callbacks.disable();</code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code> <span class="comment">// test the disabled state of the list</span></code></div></div><div class="container"><div class="line"><code> console.log ( callbacks.disabled() );</code></div></div><div class="container"><div class="line"><code> <span class="comment">// outputs: true</span></code></div></div></pre>
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