---
title: URIError
slug: Web/JavaScript/Reference/Global_Objects/URIError
tags:
  - Error
  - JavaScript
  - URIError
  - 对象
translation_of: Web/JavaScript/Reference/Global_Objects/URIError
---
<div>{{JSRef}}</div>

<p>URIError 对象用来表示以一种错误的方式使用全局URI处理函数而产生的错误。</p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox"><code>new URIError([<var>message</var>[, <var>fileName</var>[, <var>lineNumber</var>]]])</code></pre>

<h3 id="参数">参数</h3>

<dl>
 <dt><code>message</code></dt>
 <dd>选填。易于理解的错误描述。</dd>
 <dt><code>fileName</code> 【非标准内联】</dt>
 <dd>选填。包含造成异常的代码的文件名称。</dd>
 <dt><code>lineNumber</code> 【非标准内联】</dt>
 <dd>选填。造成异常的代码行号。</dd>
</dl>

<h2 id="描述">描述</h2>

<p>当向全局 URI 处理函数传递一个不合法的URI时，URIError 错误会被抛出。</p>

<h2 id="属性">属性</h2>

<dl>
 <dt>{{jsxref("URIError.prototype")}}</dt>
 <dd>允许向一个 URIError 对象添加额外的属性。</dd>
</dl>

<h2 id="方法">方法</h2>

<p>虽然全局 URIError 对象没有任何自己的方法，但是它能通过原型链继承一些方法。</p>

<h2 id="URIError_实例"><code>URIError 实例</code></h2>

<h3 id="属性_2">属性</h3>

<div>{{page('/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/URIError/prototype', '属性')}}</div>

<h3 id="方法_2">方法</h3>

<div>{{page('/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/URIError/prototype', '方法')}}</div>

<h2 id="示例">示例</h2>

<h3 id="捕获一个_URIError_实例">捕获一个 <code>URIError 实例</code></h3>

<pre class="brush: js">try {
  decodeURIComponent('%');
} catch (e) {
  console.log(e instanceof URIError); // true
  console.log(e.message);             // "malformed URI sequence"
  console.log(e.name);                // "URIError"
  console.log(e.fileName);            // "Scratchpad/1"
  console.log(e.lineNumber);          // 2
  console.log(e.columnNumber);        // 2
  console.log(e.stack);               // "@Scratchpad/2:2:3\n"
}
</pre>

<h3 id="创建一个_URIError_实例">创建一个 <code>URIError 实例</code></h3>

<pre class="brush: js">try {
  throw new URIError('Hello', 'someFile.js', 10);
} catch (e) {
  console.log(e instanceof URIError); // true
  console.log(e.message);             // "Hello"
  console.log(e.name);                // "URIError"
  console.log(e.fileName);            // "someFile.js"
  console.log(e.lineNumber);          // 10
  console.log(e.columnNumber);        // 0
  console.log(e.stack);               // "@Scratchpad/2:2:9\n"
}
</pre>

<h2 id="规范">规范</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">规范</th>
   <th scope="col">状态</th>
   <th scope="col">注释</th>
  </tr>
  <tr>
   <td>{{SpecName('ES3', '#sec-15.11.6.6', 'URIError')}}</td>
   <td>{{Spec2('ES3')}}</td>
   <td>初始定义</td>
  </tr>
  <tr>
   <td>{{SpecName('ES5.1', '#sec-15.11.6.6', 'URIError')}}</td>
   <td>{{Spec2('ES5.1')}}</td>
   <td> </td>
  </tr>
  <tr>
   <td>{{SpecName('ES6', '#sec-native-error-types-used-in-this-standard-urierror', 'URIError')}}</td>
   <td>{{Spec2('ES6')}}</td>
   <td> </td>
  </tr>
  <tr>
   <td>{{SpecName('ESDraft', '#sec-native-error-types-used-in-this-standard-urierror', 'URIError')}}</td>
   <td>{{Spec2('ESDraft')}}</td>
   <td> </td>
  </tr>
 </tbody>
</table>

<h2 id="浏览器兼容">浏览器兼容</h2>

<div>
<p>{{Compat("javascript.builtins.URIError")}}</p>
</div>

<h2 id="参见">参见</h2>

<ul>
 <li>{{jsxref("Error")}}</li>
 <li>{{jsxref("URIError.prototype")}}</li>
 <li>{{jsxref("Global_Objects/decodeURI", "decodeURI()")}}</li>
 <li>{{jsxref("Global_Objects/decodeURIComponent", "decodeURIComponent()")}}</li>
 <li>{{jsxref("Global_Objects/encodeURI", "encodeURI()")}}</li>
 <li>{{jsxref("Global_Objects/encodeURIComponent", "encodeURIComponent()")}}</li>
</ul>