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---
title: RegExp.prototype.source
slug: Web/JavaScript/Reference/Global_Objects/RegExp/source
tags:
- JavaScript
- Property
- Prototype
- Reference
- RegExp
- Regular Expressions
translation_of: Web/JavaScript/Reference/Global_Objects/RegExp/source
---
<div>{{JSRef("Global_Objects", "RegExp")}}</div>
<h2 id="Summary" name="Summary">概述</h2>
<p><strong><code>source</code></strong> 属性返回一个值为当前正则表达式对象的模式文本的字符串，该字符串不会包含正则字面量两边的斜杠以及任何的标志字符。</p>
<h2 id="Examples" name="Examples">示例</h2>
<pre class="brush: js">var regex = /fooBar/ig;
console.log(regex.source); // "fooBar"，不包含 /.../ 和 "ig"。
</pre>
<h2 id="Specifications" name="Specifications">规范</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">规范名称</th>
<th scope="col">规范状态</th>
<th scope="col">备注</th>
</tr>
<tr>
<td>ECMAScript 3rd Edition.</td>
<td>Standard</td>
<td><code>source</code> 是正则对象自身的数据属性</td>
</tr>
<tr>
<td>{{SpecName('ES5.1', '#sec-15.10.7.1', 'RegExp.prototype.source')}}</td>
<td>{{Spec2('ES5.1')}}</td>
<td> </td>
</tr>
<tr>
<td>{{SpecName('ES6', '#sec-get-regexp.prototype.source', 'RegExp.prototype.source')}}</td>
<td>{{Spec2('ES6')}}</td>
<td><code>source</code> 成为了正则对象原型上的一个访问器属性</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2>
<div>{{CompatibilityTable}}</div>
<div>
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<div>
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android</th>
<th>Chrome for Android</th>
<th>Firefox Mobile (Gecko)</th>
<th>IE Mobile</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatVersionUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<h2 id="See_also" name="See_also">相关链接</h2>
<ul>
<li>{{jsxref("RegExp.prototype.flags")}}</li>
</ul>
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