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语法高亮，滚动条美化，设置页面调整

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docs/javascript/Reference/Global_Objects/Proxy/handler/getOwnPropertyDescriptor.html
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@@ -2,11 +2,11 @@
<div></div>
<p><strong><code>handler.getOwnPropertyDescriptor()</code></strong> 方法是 <a href="Reference/Global_Objects/Object/getOwnPropertyDescriptor" title="Object.getOwnPropertyDescriptor() 方法返回指定对象上一个自有属性对应的属性描述符。（自有属性指的是直接赋予该对象的属性，不需要从原型链上进行查找的属性）"><code>Object.getOwnPropertyDescriptor()</code></a>  的陷阱。</p>
<h2 id="语法">语法</h2>
<pre class="brush: js">var p = new Proxy(target, {
<pre><code class="language-javascript">var p = new Proxy(target, {
getOwnPropertyDescriptor: function(target, prop) {
}
});
</pre>
</code></pre>
<h3 id="参数">参数</h3>
<p><code>下列参数会被传入 getOwnPropertyDescriptor</code> 方法中。这是绑定到处理程序。 </p>
<dl>
@@ -37,7 +37,7 @@
</ul>
<h2 id="示例">示例</h2>
<p>以下是 <a href="Reference/Global_Objects/Object/getOwnPropertyDescriptor" title="Object.getOwnPropertyDescriptor() 方法返回指定对象上一个自有属性对应的属性描述符。（自有属性指的是直接赋予该对象的属性，不需要从原型链上进行查找的属性）"><code>Object.getOwnPropertyDescriptor()</code></a> 的代码陷阱：</p>
<pre class="brush: js">var p = new Proxy({ a: 20}, {
<pre><code class="language-javascript">var p = new Proxy({ a: 20}, {
getOwnPropertyDescriptor: function(target, prop) {
console.log('called: ' + prop);
return { configurable: true, enumerable: true, value: 10 };
@@ -46,9 +46,9 @@
console.log(Object.getOwnPropertyDescriptor(p, 'a').value); // "called: a"
// 10
</pre>
</code></pre>
<p>以下代码则违反了不变量。</p>
<pre class="brush: js">var obj = { a: 10 };
<pre><code class="language-javascript">var obj = { a: 10 };
Object.preventExtensions(obj);
var p = new Proxy(obj, {
getOwnPropertyDescriptor: function(target, prop) {
@@ -57,7 +57,7 @@ var p = new Proxy(obj, {
});
Object.getOwnPropertyDescriptor(p, 'a'); // TypeError is thrown
</pre>
</code></pre>
<h2 id="规范">规范</h2>
<table class="standard-table">
<tbody>