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docs/javascript/Reference/Global_Objects/Boolean/valueOf.html

@@ -4,7 +4,7 @@
 <div><iframe class="interactive interactive-js" frameborder="0" height="250" src="https://interactive-examples.mdn.mozilla.net/pages/js/boolean-valueof.html" width="100%"></iframe></div>
 <p class="hidden">The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone <a class="external" href="https://github.com/mdn/interactive-examples" rel="noopener">https://github.com/mdn/interactive-examples</a> and send us a pull request.</p>
 <h2 id="Syntax" name="Syntax">语法</h2>
-<pre class="syntaxbox"><code><var>bool</var>.valueOf()</code></pre>
+<pre><code class="language-javascript"><code><var>bool</var>.valueOf()</code></code></pre>
 <h3 id="返回值">返回值</h3>
 <p>给定<a href="Reference/Boolean" title="此页面仍未被本地化, 期待您的翻译!"><code>Boolean</code></a>对象的原始值</p>
 <h2 id="Description" name="Description">描述</h2>
@@ -12,9 +12,9 @@
 <p>该方法通常在 JavaScript 内部调用，而不是在代码中显式调用。</p>
 <h2 id="Examples" name="Examples">示例</h2>
 <h3 id="Example:_Using_valueOf" name="Example:_Using_valueOf">使用 <code>valueOf</code></h3>
-<pre class="brush: js">x = new Boolean();
+<pre><code  class="language-javascript">x = new Boolean();
 myVar = x.valueOf()      // assigns false to myVar
-</pre>
+</code></pre>
 <h2 id="规范">规范</h2>
 <table class="standard-table">
 <tbody>