Symbol.matchAll

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此Symbol用于 String.prototype.matchAll() 特别是 RegExp.prototype[@@matchAll]()。下面两个例子返回相同的结果:

'abc'.matchAll(/a/);

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

此方法用于自定义 RegExp 子类中的匹配行为。

Symbol.matchAll 属性的属性特性：
writable	false
enumerable	false
configurable	false