在此页

• 描述
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Symbol.matchAll well-known symbol returns an iterator, that yields matches of the regular expression against a string. This function is called by the String.prototype.matchAll() 方法。

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

描述

This Symbol is used for String.prototype.matchAll() and specifically in RegExp.prototype[@@matchAll]() . The following two examples return same result:

'abc'.matchAll(/a/);
/a/[Symbol.matchAll]('abc');
					

This method exists for customizing match behavior within RegExp subclasses.

特性属性在 Symbol.matchAll
可写	no
可枚举	no
可配置	no

范例

Using Symbol.matchAll

let re = /[0-9]+/g;
let str = '2016-01-02|2019-03-07';
const numbers = {
  *[Symbol.matchAll] (str) {
    for (const n of str.matchAll(/[0-9]+/g))
      yield n[0];
  }
};
console.log(Array.from(str.matchAll(numbers)));
//  Array ["2016", "01", "02", "2019", "03", "07"]
					

见 String.prototype.matchAll() and RegExp.prototype[@@matchAll]() 了解更多范例。

规范

规范
ECMAScript (ECMA-262) The definition of 'Symbol.matchAll' in that specification.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
matchAll	Chrome 73	Edge 79	Firefox 67	IE No	Opera 60	Safari No	WebView Android 73	Chrome Android 73	Firefox Android 67	Opera Android 52	Safari iOS No	Samsung Internet Android No	nodejs 12.0.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• String.prototype.matchAll()
• RegExp.prototype[@@matchAll]()

元数据

• 最后修改： May 8, 2020

相关话题

1. 标准内置对象
2. Symbol
3. 特性
   1. Symbol.asyncIterator
   2. Symbol.hasInstance
   3. Symbol.isConcatSpreadable
   4. Symbol.iterator
   5. Symbol.match
   6. Symbol.matchAll
   7. Symbol.prototype.description
   8. Symbol.replace
   9. Symbol.search
   10. Symbol.species
   11. Symbol.split
   12. Symbol.toPrimitive
   13. Symbol.toStringTag
   14. Symbol.unscopables
4. 方法
   1. Symbol.for()
   2. Symbol.keyFor()
   3. Symbol.prototype.toSource()
   4. Symbol.prototype.toString()
   5. Symbol.prototype.valueOf()
   6. Symbol.prototype[@@toPrimitive]
5. 继承：
6. Function
7. 特性
   1. Function.arguments
   2. Function.caller
   3. Function.displayName
   4. Function.length
   5. Function.name
8. 方法
   1. Function.prototype.apply()
   2. Function.prototype.bind()
   3. Function.prototype.call()
   4. Function.prototype.toSource()
   5. Function.prototype.toString()
9. Object
10. 特性
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
11. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.valueOf()
    12. Object.setPrototypeOf()