Symbol.matchAll

Symbol.matchAll 静态数据属性代表 众所周知的符号 @@matchAll。String.prototype.matchAll() 方法在返回迭代器的方法的第一个参数上查找此符号，该迭代器生成当前对象与字符串的匹配项。

¥The Symbol.matchAll static data property represents the well-known symbol @@matchAll. The String.prototype.matchAll() method looks up this symbol on its first argument for the method that returns an iterator, that yields matches of the current object against a string.

有关详细信息，请参阅 RegExp.prototype[@@matchAll]() 和 String.prototype.matchAll()。

¥For more information, see RegExp.prototype[@@matchAll]() and String.prototype.matchAll().

const 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)));
// ["2016", "01", "02", "2019", "03", "07"]

¥Specifications

¥Browser compatibility