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2021/03/01 - 箭头函数和普通函数的区别 #61

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lxinr opened this issue Mar 1, 2021 · 0 comments

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lxinr commented Mar 1, 2021

箭头函数表达式的语法比函数表达式更短，并且不绑定自己的this，arguments，super或 new.target。这些函数表达式最适合用于非方法函数(non-method functions)，并且它们不能用作构造函数

箭头函数没有this，在箭头函数中访问的this实际来自于外部词法环境
箭头函数没有arguments
箭头函数不能使用new进行调用
箭头函数没有super
箭头函数没有原型

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lxinr added the JS基础 label

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