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箭头函数和普通函数 #147

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neptoo opened this issue Aug 21, 2024 · 0 comments

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👩‍💻JavaScript

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neptoo commented Aug 21, 2024

arguments 普通函数可以获取到函数传递进来的参数
this指向不同普通函数是指向调用它的那个对象箭头函数是指向创建时
return 如果没有大括号箭头函数会自动返回不需要写return关键字
你需要将箭头函数赋值给一个变量然后才能去调用普通函数有方法名

普通函数的this 取决于它在哪里被调用

箭头函数的this不会被重新定义它和函数创建时的this一模一样

neptoo added the 👩‍💻JavaScript label

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