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

<p><code><strong>URIError</strong></code> 物件在全域的URI處理函式被錯誤使用時作為一個錯誤被拋出。</p>

<h2 id="語法">語法</h2>

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

<h3 id="參數">參數</h3>

<dl>
 <dt><code>message</code></dt>
 <dd>可選。具人類可讀性的錯誤說明</dd>
 <dt><code>fileName</code> {{non-standard_inline}}</dt>
 <dd>可選。包含造成錯誤發生的程式碼的檔案名稱</dd>
 <dt><code>lineNumber</code> {{non-standard_inline}}</dt>
 <dd>可選。造成錯誤發生的程式碼行號</dd>
</dl>

<h2 id="說明">說明</h2>

<p><code>URIError</code> 在全域的URI處理函式被傳入了一個錯誤編碼的URI時被拋出。</p>

<h2 id="屬性">屬性</h2>

<dl>
 <dt>{{jsxref("URIError.prototype")}}</dt>
 <dd>允許對一個 <code>URIError</code> 物件增加其屬性。</dd>
</dl>

<h2 id="方法">方法</h2>

<p>普遍的 <code>URIError</code> 自身沒有包含方法，儘管他的確從原型鍊中繼承了一些。</p>

<h2 id="URIError_物件實體"><code>URIError</code> 物件實體</h2>

<h3 id="屬性_2">屬性</h3>

<div>{{page('/en-US/docs/Web/JavaScript/Reference/Global_Objects/URIError/prototype', 'Properties')}}</div>

<h3 id="方法_2">方法</h3>

<div>{{page('/en-US/docs/Web/JavaScript/Reference/Global_Objects/URIError/prototype', 'Methods')}}</div>

<h2 id="範例">範例</h2>

<h3 id="Catch_一個_URIError">Catch 一個 <code>URIError</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="生成一個_URIError">生成一個 <code>URIError</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="規範">規範</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">規範</th>
   <th scope="col">狀態</th>
   <th scope="col">註</th>
  </tr>
  <tr>
   <td>{{SpecName('ES3', '#sec-15.11.6.6', 'URIError')}}</td>
   <td>{{Spec2('ES3')}}</td>
   <td>Initial definition</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="瀏覽器相容性">瀏覽器相容性</h2>

<div>


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

<h2 id="另見">另見</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>