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语法高亮，滚动条美化，设置页面调整

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6
docs/javascript/Reference/Global_Objects/WeakMap/get.html
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<div></div>
<p><code><strong>get()</strong></code> 方法返回  <code>WeakMap</code> 指定的元素。</p>
<h2 id="语法">语法</h2>
<pre class="syntaxbox"><code><em>wm</em>.get(key);</code></pre>
<pre><code class="language-javascript"><code><em>wm</em>.get(key);</code></code></pre>
<h3 id="参数">参数</h3>
<dl>
<dt>key</dt>
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<h3 id="返回与指定键相关联的值，如果_WeakMap_对象找不到这个键则返回_undefined。"><span style="font-size: 14px; line-height: 1.5;">返回与指定键相关联的值，如果 </span><code style="font-size: 14px; font-style: normal; font-weight: normal; line-height: 1.5;">WeakMap</code><span style="font-size: 14px; line-height: 1.5;"> 对象找不到这个键则返回 </span><code style="font-size: 14px; font-style: normal; font-weight: normal; line-height: 1.5;">undefined</code><span style="font-size: 14px; line-height: 1.5;">。</span></h3>
<h2 id="例子">例子</h2>
<h3 id="使用_get_方法">使用 <code>get </code>方法<code> </code></h3>
<pre class="brush: js">var wm = new WeakMap();
<pre><code class="language-javascript">var wm = new WeakMap();
wm.set(window, "foo");
wm.get(window); // 返回 "foo".
wm.get("baz"); // 返回 undefined.
</pre>
</code></pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>