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JS箭头函数和function的区别 #18

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danLawrence opened this issue Jun 25, 2021 · 0 comments

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danLawrence commented Jun 25, 2021

JS箭头函数和function的区别：

箭头函数体内的this对象，就是定义时所在的对象，而不是使用时所在的对象。
箭头函数不可以当作构造函数，也就是说，不可以使用new命令，否则会抛出一个错误。
箭头函数不可以使用arguments对象，该对象在函数体内不存在。如果要用，可以用Rest参数代替。
不可以使用yield命令，因此箭头函数不能用作Generator函数。

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