地沟油嘎嘎香
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地沟油嘎嘎香
@alanchanzm 1. `class` 声明会提升 . 是不是写错了? 原文: Class declarations, unlike function declarations, are not hoisted.
@alanchanzm 我觉得不对吧 ``` { const foo = new Foo(); // ReferenceError: Foo is not defined class Foo { constructor() { this.foo = 37; } } } ``` class会提升这段代码就说不过去! [class](http://es6.ruanyifeng.com/#docs/class)