题解 | #获取指定字符串#
获取指定字符串
https://www.nowcoder.com/practice/4ec56ad04a9a4402a01e50a390a8060a
function captureThreeNumbers(str) { const reg = /\d{3}/ return str.match(reg)? str.match(reg)[0] : false }
获取指定字符串
https://www.nowcoder.com/practice/4ec56ad04a9a4402a01e50a390a8060a
function captureThreeNumbers(str) { const reg = /\d{3}/ return str.match(reg)? str.match(reg)[0] : false }
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