## 概述

`source` 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。

## 示例

    var regex = /fooBar/ig;

    console.log(regex.source); // "fooBar"，不包含 /.../ 和 "ig"。

## 规范

规范名称 | 规范状态 | 备注
--- | --- | ---
ECMAScript 3rd Edition. | Standard | `source` 是正则对象自身的数据属性
ECMAScript 5.1 (ECMA-262) RegExp.prototype.source | Standard |
ECMAScript 2015 (6th Edition, ECMA-262) RegExp.prototype.source | Standard | `source` 成为了正则对象原型上的一个访问器属性

## 浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

- Desktop
- Mobile

Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari
--- | --- | --- | --- | --- | ---
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes)

Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile
--- | --- | --- | --- | --- | --- | ---
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes)

## 相关链接

- `RegExp.prototype.flags`