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98 lines
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98 lines
5.8 KiB
HTML
<article id="wikiArticle">
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<div class="warning">遗留的生成器函数是 SpiderMonkey 的特殊特性，会在未来的某个时刻被修改。为了以后的使用，考虑使用 <a href="Reference/Statements/function*" title="function* 这种声明方式(function关键字后跟一个星号）会定义一个生成器函数 (generator function)，它返回一个 Generator 对象。"><code>function*</code></a>。</div>
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<div></div>
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<p><strong>遗留的生成器函数语句 </strong>使用特殊参数声明遗留的生成器函数。</p>
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<p>你也可以使用带有<code>functionBody</code>的构造<a class="new" href="Reference/函数" rel="nofollow" title="此页面仍未被本地化, 期待您的翻译!"><code>函数</code></a> ，至少一个 <a class="new" href="Reference/运算符/yield" rel="nofollow" title="此页面仍未被本地化, 期待您的翻译!"><code>yield</code></a> 表达式，以及<a class="new" href="Reference/运算符/Legacy_generator_function" rel="nofollow" title="此页面仍未被本地化, 期待您的翻译!">遗留的生成器函数表达式</a>来定义函数。</p>
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<h2 id="语法">语法</h2>
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<pre><code class="language-javascript">function <em>name</em>([<em>param</em>,[, <em>param</em>,[..., <em>param</em>]]]) {
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[<em>statements</em>]
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}
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</code></pre>
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<dl>
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<dt><code>name</code></dt>
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<dd>函数名。</dd>
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</dl>
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<dl>
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<dt><code>param</code></dt>
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<dd>传入函数的参数名，一个函数最多有255个参数。</dd>
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</dl>
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<dl>
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<dt><code>statements</code></dt>
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<dd>构成函数体的语句。应该至少含有一个 <a href="Reference/Operators/yield" title="yield 关键字用来暂停和恢复一个生成器函数（(function* 或遗留的生成器函数）。"><code>yield</code></a> 表达式。</dd>
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</dl>
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<h2 id="描述">描述</h2>
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<p>用法概述可在 <a href="/en-US/docs/JavaScript/Guide/Iterators_and_Generators">迭代器和生成器</a>页面上查看。</p>
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<h2 id="浏览器兼容性">浏览器兼容性</h2>
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<p></p><div class="blockIndicator warning"><strong><a class="external" href="https://github.com/mdn/browser-compat-data" rel="noopener">We're converting our compatibility data into a machine-readable JSON format</a></strong>.
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This compatibility table still uses the old format,
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because we haven't yet converted the data it contains.
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<strong><a class="new" href="/zh-CN/docs/MDN/Contribute/Structures/Compatibility_tables" rel="nofollow">Find out how you can help!</a></strong></div>
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<div class="htab">
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<a id="AutoCompatibilityTable" name="AutoCompatibilityTable"></a>
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<ul>
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<li class="selected"><a>Desktop</a></li>
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<li><a>Mobile</a></li>
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</ul>
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</div><p></p>
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<div id="compat-desktop">
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<table class="compat-table">
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<tbody>
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<tr>
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<th>Feature</th>
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<th>Chrome</th>
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<th>Firefox (Gecko)</th>
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<th>Internet Explorer</th>
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<th>Opera</th>
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<th>Safari</th>
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</tr>
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<tr>
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<td>Basic support</td>
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<td><span style="color: #f00;">未实现</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #f00;">未实现</span></td>
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<td><span style="color: #f00;">未实现</span></td>
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<td><span style="color: #f00;">未实现</span></td>
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</tr>
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</tbody>
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</table>
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</div>
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<div id="compat-mobile">
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<table class="compat-table">
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<tbody>
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<tr>
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<th>Feature</th>
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<th>Android</th>
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<th>Chrome for Android</th>
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<th>Firefox Mobile (Gecko)</th>
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<th>IE Mobile</th>
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<th>Opera Mobile</th>
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<th>Safari Mobile</th>
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</tr>
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<tr>
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<td>Basic support</td>
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<td><span style="color: #f00;">未实现</span></td>
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<td><span style="color: #f00;">未实现</span></td>
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<td><span style="color: #888;" title="Please update this with the earliest version of support.">(Yes)</span></td>
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<td><span style="color: #f00;">未实现</span></td>
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<td><span style="color: #f00;">未实现</span></td>
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<td><span style="color: #f00;">未实现</span></td>
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</tr>
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</tbody>
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</table>
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</div>
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<h2 id="参考">参考</h2>
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<ul>
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<li><a href="Reference/Global_Objects/Generator" title="生成器对象是由一个 generator function 返回的,并且它符合可迭代协议和迭代器协议。"><code>Generator</code></a></li>
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<li><a href="/en-US/docs/Web/JavaScript/Reference/Operators/Legacy_generator_function">遗留的函数生成器表达式</a></li>
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<li><a href="/en-US/docs/Web/JavaScript/Guide/The_legacy_Iterator_protocol">遗留的迭代器协议</a></li>
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<li><a href="Reference/Operators/yield" title="yield 关键字用来暂停和恢复一个生成器函数（(function* 或遗留的生成器函数）。"><code>yield</code></a></li>
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<li><a href="/en-US/docs/Web/JavaScript/Reference/Functions_and_function_scope">函数和函数作用域</a></li>
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<li><a href="Reference/Statements/function" title="函数声明定义一个具有指定参数的函数。"><code>function</code></a></li>
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<li><a href="Reference/Operators/function" title="function 关键字可以用来在一个表达式中定义一个函数。"><code>function expression</code></a></li>
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<li><a href="Reference/Function" title="此页面仍未被本地化, 期待您的翻译!"><code>Function</code></a></li>
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<li><a href="Reference/Statements/function*" title="function* 这种声明方式(function关键字后跟一个星号）会定义一个生成器函数 (generator function)，它返回一个 Generator 对象。"><code>function*</code></a></li>
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<li><a href="Reference/Operators/function*" title="function*关键字可以在表达式内部定义一个生成器函数。"><code>function* expression</code></a></li>
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<li><a href="Reference/Global_Objects/GeneratorFunction" title="GeneratorFunction构造器生成新的生成器函数 对象。在JavaScript中，生成器函数实际上都是GeneratorFunction的实例对象。"><code>GeneratorFunction</code></a></li>
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<li><a href="/en-US/docs/Web/JavaScript/Guide/The_Iterator_protocol">迭代器协议</a></li>
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</ul>
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</article> |