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ES6 中的 map 和原生的对象有什么区别 #487

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lgwebdream opened this issue Jul 6, 2020 · 2 comments

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lgwebdream commented Jul 6, 2020

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lgwebdream commented Jul 6, 2020

扫描下方二维码，获取答案以及详细解析，同时可解锁800+道前端面试题。

yangyangliu commented Aug 18, 2023

object的键是字符串。
map的键可以是任意类型。

object获取键值使用Object.keys（返回数组）；
Map获取键值使用 map变量.keys() (返回迭代器)。

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