题解 | #文件扩展名#
文件扩展名
https://www.nowcoder.com/practice/01ca4c6aa14249c2911f89baba9dc023
优雅
const _getExFilename = (filename) => { // 补全代码 return "."+ filename.split('.').pop() }
文件扩展名
https://www.nowcoder.com/practice/01ca4c6aa14249c2911f89baba9dc023
const _getExFilename = (filename) => { // 补全代码 return "."+ filename.split('.').pop() }
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