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JS数组的append很慢

 3 years ago
source link: https://zhuanlan.zhihu.com/p/370523219
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我们应该如何正确的使用ES5提供的数组遍历、迭代函数?

在ES5中,提供了很多方便数组迭代的方法,如:forEach,map,filter,every,some,reduce,reduceRight等。可以说可以减少很多的代码,而且习惯了jq的链式操作经常把一些代码串成一行缩减…

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