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Merge pull request #850 from wfzong/patch-3

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Symble toString 修改为函数执行
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Ruan YiFeng 2019-05-08 07:34:09 -07:00 committed by GitHub
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@ -115,7 +115,7 @@ const sym = Symbol('foo');
const sym = Symbol('foo'); const sym = Symbol('foo');
String(sym) // "Symbol(foo)" String(sym) // "Symbol(foo)"
sym.toString // "Symbol(foo)" sym.toString() // "Symbol(foo)"
``` ```
上面的用法不是很方便。[ES2019](https://github.com/tc39/proposal-Symbol-description) 提供了一个实例属性`description`，直接返回 Symbol 的描述。 上面的用法不是很方便。[ES2019](https://github.com/tc39/proposal-Symbol-description) 提供了一个实例属性`description`，直接返回 Symbol 的描述。