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语法高亮,滚动条美化,设置页面调整
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<div></div>
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<p><strong><code>handler.deleteProperty()</code></strong> 方法用于拦截对对象属性的 <a href="Reference/Operators/delete" title="delete 操作符用于删除对象的某个属性;如果没有指向这个属性的引用,那它最终会被释放。"><code>delete</code></a> 操作。</p>
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<h2 id="语法">语法</h2>
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<pre class="brush: js">var p = new Proxy(target, {
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<pre><code class="language-javascript">var p = new Proxy(target, {
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deleteProperty: function(target, property) {
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}
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});
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</pre>
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</code></pre>
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<h3 id="参数">参数</h3>
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<p><code>deleteProperty</code> 方法将会接受以下参数。 <code>this</code> 被绑定在 handler上。</p>
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<dl>
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</ul>
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<h2 id="示例">示例</h2>
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<p>以下代码演示了对 <a href="Reference/Operators/delete" title="delete 操作符用于删除对象的某个属性;如果没有指向这个属性的引用,那它最终会被释放。"><code>delete</code></a> 操作的拦截。</p>
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<pre class="brush: js">var p = new Proxy({}, {
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<pre><code class="language-javascript">var p = new Proxy({}, {
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deleteProperty: function(target, prop) {
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console.log('called: ' + prop);
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return true;
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});
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delete p.a; // "called: a"
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</pre>
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</code></pre>
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<h2 id="规范">规范</h2>
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<table class="standard-table">
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<tbody>
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