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昨天面试，今天发现面试官 2 个问题都弄错了
source link: https://www.v2ex.com/t/459395
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JavaScript - @lazyzml - 首先第一个问题是\w 匹配什么，我说的匹配小写 a-z，然后他说不对，是匹配空格，tab 符那些。然后第二个问题是 js 如何数组去重我回答第一个方法是 new Set(arr)去重，
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