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71 lines
7.0 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">event.timeStamp</h1>
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<div class="entry-meta">
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所属分类:<span class="category"><a href="/category/events/">事件</a> > <a href="/category/events/event-object/">事件对象</a></span>
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<span class="pull-right">英文文档:<a href="https://api.jquery123.com/event.timeStamp/" target="_blank">event.timeStamp</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="event-timeStamp1"><h2 class="section-title">
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<span>event.timeStamp</span><span class="returns">返回: <a href="/Types/#Number">Number</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>这个属性返回事件触发时距离1970年1月1日的毫秒数。</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/1.2.6/">1.2.6</a></span>event.timeStamp</h4></li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p>
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通过在代码中获得两个点之间的 <code>event.timeStamp</code> 值,并给出差值来分析事件的性能,此属性是很有用的。如果只是要确定当前的时间内的事件处理程序,使用<code>(new Date).getTime()</code>来代替。
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</p>
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<p>注意: 有一个 <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=238041">bug open since 2004</a>, 这个值是不正确填充在Firefox
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它是不可能知道事件的时间,在该浏览器中创建。</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><span class="desc">显示两次点击之间的时间。</span></h4>
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<div class="syntaxhighlighter xml ">
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<pre><div class="container"><div class="line"><code><span class="doctype"><!DOCTYPE html></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">html</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">style</span>></span><span class="css"></span></code></div></div><div class="container"><div class="line"><code><span class="tag">div</span> <span class="rules">{ <span class="rule"><span class="attribute">height</span>:<span class="value"> <span class="number">100</span>px;</span></span> <span class="rule"><span class="attribute">width</span>:<span class="value"> <span class="number">300</span>px;</span></span> <span class="rule"><span class="attribute">margin</span>:<span class="value"> <span class="number">10</span>px;</span></span></span></code></div></div><div class="container"><div class="line"><code> <span class="rule"><span class="attribute">background-color</span>:<span class="value"> <span class="hexcolor">#ffd</span>;</span></span> <span class="rule"><span class="attribute">overflow</span>:<span class="value"> auto;</span></span> <span class="rule">}</span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">style</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>></span><span class="javascript"></span><span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">div</span>></span>Click.<span class="tag"></<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">script</span>></span><span class="javascript"></span></code></div></div><div class="container"><div class="line"><code><span class="keyword">var</span> last, diff;</code></div></div><div class="container"><div class="line"><code>$(<span class="string">'div'</span>).click(<span class="keyword">function</span>(event) {</code></div></div><div class="container"><div class="line"><code> <span class="keyword">if</span> ( last ) {</code></div></div><div class="container"><div class="line"><code> diff = event.timeStamp - last</code></div></div><div class="container"><div class="line"><code> $(<span class="string">'div'</span>).append(<span class="string">'time since last event: '</span> + diff + <span class="string">'<br/>'</span>);</code></div></div><div class="container"><div class="line"><code> } <span class="keyword">else</span> {</code></div></div><div class="container"><div class="line"><code> $(<span class="string">'div'</span>).append(<span class="string">'Click again.<br/>'</span>);</code></div></div><div class="container"><div class="line"><code> }</code></div></div><div class="container"><div class="line"><code> last = event.timeStamp;</code></div></div><div class="container"><div class="line"><code>});</code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">html</span>></span></code></div></div></pre>
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</tbody>
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</table>
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</div>
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<h4>Demo:</h4>
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<div class="demo code-demo"></div>
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</div></section>
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</div></article> </div>
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</article> |