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使用正则实现trim()函数 #20

@shimuash

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@shimuash
function trim(str) {
   return str.replace(/^\s+/, '').replace(/\s+$/, '')
}
const str = ' string name '
trim(str)  // "string name"

正则表达式这块不怎么熟悉,后面要抽时间再重点学习一下

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