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+---
+title: Atomics.load()
+slug: Web/JavaScript/Reference/Global_Objects/Atomics/load
+translation_of: Web/JavaScript/Reference/Global_Objects/Atomics/load
+---
+<div>{{JSRef}}</div>
+
+<p>静态方法 <code><strong>Atomics</strong></code><strong><code>.load()</code></strong> 返回一个数组当中给定位置的值。</p>
+
+<div>{{EmbedInteractiveExample("pages/js/atomics-load.html")}}</div>
+
+
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">Atomics.load(typedArray, index)
+</pre>
+
+<h3 id="参数">参数</h3>
+
+<dl>
+ <dt><code>typedArray</code></dt>
+ <dd>一个共享的整型数组。可以是 {{jsxref("Int8Array")}}，{{jsxref("Uint8Array")}}，{{jsxref("Int16Array")}}，{{jsxref("Uint16Array")}}，{{jsxref("Int32Array")}} 或 {{jsxref("Uint32Array")}}.</dd>
+ <dt><code>index</code></dt>
+ <dd>在 <code>typedArray</code> 中需要加载的位置<font face="consolas, Liberation Mono, courier, monospace"><span style="background-color: rgba(220, 220, 220, 0.5);">。</span></font></dd>
+</dl>
+
+<h3 id="返回值">返回值</h3>
+
+<p>给定位置的值 (<code>typedArray[index]</code>)。</p>
+
+<h3 id="异常">异常</h3>
+
+<ul>
+ <li>抛出 {{jsxref("TypeError")}}, 如果 <code>typedArray</code> 不是一个被允许的整型。</li>
+ <li>抛出 {{jsxref("TypeError")}}, 如果 <code>typedArray</code> 不是一个共享数组。</li>
+ <li>抛出 {{jsxref("RangeError")}}, 如果 <code>index</code> 超出 <code>typedArray</code> 的界限。</li>
+</ul>
+
+<h2 id="示例">示例</h2>
+
+<pre class="brush: js">var sab = new SharedArrayBuffer(1024);
+var ta = new Uint8Array(sab);
+
+Atomics.add(ta, 0, 12);
+Atomics.load(ta, 0); // 12</pre>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">规范</th>
+   <th scope="col">状态</th>
+   <th scope="col">论述</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('ESDraft', '#sec-atomics.load', 'Atomics.load')}}</td>
+   <td>{{Spec2('ESDraft')}}</td>
+   <td>Initial definition in ES2017.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容">浏览器兼容</h2>
+
+<div class="hidden">本页的兼容性表格是通过数据生成的。 如果你愿意对这些数据做些贡献，请检出 <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> 然后给我们发一个 pull request。</div>
+
+<p>{{Compat("javascript.builtins.Atomics.load")}}</p>
+
+<h2 id="参阅">参阅</h2>
+
+<ul>
+ <li>{{jsxref("Atomics")}}</li>
+ <li>{{jsxref("Atomics.store()")}}</li>
+</ul>