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深入了解JavaScript底层原理

 5 years ago
source link: https://juejin.im/post/5be25ee66fb9a04a09558398
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[TOC] 1. 七种内置类型 基本类型： null，undefined，boolean，number（浮点类型），string，symbol（es6）。 对象：Object。 复制代码 类型转换 typeof: typeof 1 // 'number'

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