题解 | #数组扁平化# flat,正则，递归都行
数组扁平化
https://www.nowcoder.com/practice/5d7e0cf4634344c98e6ae4eaa2336bed
{"html":"<!DOCTYPE html>\n<html lang=\"en\">\n <head>\n <meta charset=\"UTF-8\">\n </head>\n <body>\n \n <script>\n const _flatten = arr =>{\n // 补全代码\n return JSON.stringify(arr).match(/[0-9]/g).map(Number)\n \n }\n </script>\n </body>\n</html>","css":"","js":""}
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