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| author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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| committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
| commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
| tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/javascript/reference/global_objects/atomics/load | |
| parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
| download | translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.gz translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.tar.bz2 translated-content-33058f2b292b3a581333bdfb21b8f671898c5060.zip | |
initial commit
Diffstat (limited to 'files/zh-cn/web/javascript/reference/global_objects/atomics/load')
| -rw-r--r-- | files/zh-cn/web/javascript/reference/global_objects/atomics/load/index.html | 76 |
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diff --git a/files/zh-cn/web/javascript/reference/global_objects/atomics/load/index.html b/files/zh-cn/web/javascript/reference/global_objects/atomics/load/index.html new file mode 100644 index 0000000000..2129a3a4ab --- /dev/null +++ b/files/zh-cn/web/javascript/reference/global_objects/atomics/load/index.html @@ -0,0 +1,76 @@ +--- +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> |
