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JavaScript 中的对象 #31

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gnosis23 opened this issue Feb 5, 2019 · 0 comments
Open

JavaScript 中的对象 #31

gnosis23 opened this issue Feb 5, 2019 · 0 comments

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@gnosis23
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gnosis23 commented Feb 5, 2019

Built-in Objects

  • Intrinsic Objects
  • Native Objects

Instrinsic Objects

由标准所定义的，在执行以前创建的对象实例。

  • isFinite, isNaN
  • encodeUri/decodeUri/encodeUriComponent/decodeUriComponent
  • String, Boolean, Object, Symbol, Number
  • Array, Date, Set, WeakSet, Map, WeakMap, Promise, RegExp, Function...
  • parseInt, parseFloat
  • Error, EvalError...
  • Uint8Array, Uint16Array...
  • JSON/Math/Reflect/Proxy

Native Objects

使用内置的构造函数（实现了[[constructor]]方法）创建的对象。常见的构造函数如：

  • Array
  • Function
  • RegExp
  • Date
  • Map, WeakMap, Set, WeakMap
  • Promise

比较好玩的是 Function ，咱们可以用 new Function 来创建函数对象 。

Reference

  • Winter 的 《重学前端》
@gnosis23 gnosis23 added the Basic label Feb 5, 2019
@gnosis23 gnosis23 removed the Basic label Jan 15, 2022
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@gnosis23