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<p>默认情况下,<span style="line-height: 19.0909080505371px;"><a href="Reference/Global_Objects/Error" title="通过Error的构造器可以创建一个错误对象。当运行时错误产生时,Error的实例对象会被抛出。Error对象也可用于用户自定义的异常的基础对象。下面列出了各种内建的标准错误类型。"><code>Error</code></a></span>对象的<code>name</code>属性值为"Error".<code>name属性和</code><span style="line-height: 19.0909080505371px;"><a href="Reference/Global_Objects/Error/message" title="message 属性是有关错误信息,人类易读的(human-readable)描述。"><code>message</code></a></span>属性一起,通过调用<span style="line-height: 19.0909080505371px;"><a href="Reference/Global_Objects/Error/toString" title="toString() 方法返回一个指定的错误对象(Error object)的字符串表示。"><code>Error.prototype.toString()</code></a></span>方法,会作为最后异常信息的字符串表示.</p>
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<h2 id="Examples" name="Examples">示例</h2>
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<h3 id="Example:_Throwing_a_custom_error" name="Example:_Throwing_a_custom_error">例子: 抛出一个自定义错误</h3>
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<pre class="brush:js">var e = new Error("Malformed input"); // e.name默认是"Error"
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<pre><code class="language-js">var e = new Error("Malformed input"); // e.name默认是"Error"
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e.name = "ParseError"; // 修改之后,e.toString()会成为下面这样的字符串
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throw e; // "ParseError: Malformed input"
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</pre>
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</code></pre>
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<h2 id="规范" style="margin-bottom: 20px; line-height: 30px; font-size: 2.14285714285714rem;">规范</h2>
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<table class="standard-table" style="line-height: 19.0909080505371px;">
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<tbody>
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