What’s the difference between `Array.prototype.map` and `Array.prototype.forEach`? When would you use each?

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`Array.prototype.map` 和 `Array.prototype.forEach` 的区别是什么？什么时候用哪个？ - 面试真题

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`Array.prototype.map` 和 `Array.prototype.forEach` 的区别是什么？什么时候用哪个？

简单javascriptarray

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