题解 | #深拷贝#
深拷贝
https://www.nowcoder.com/practice/70ca77b52d424ced8ebb348cd77c1dc5
{"html":"<!DOCTYPE html>\n<html>\n <head>\n <meta charset=utf-8>\n </head>\n <body>\n \t\n <script type=\"text/javascript\">\n const _completeDeepClone = (target, map = new WeakMap()) => {\n // 补全代码\n if(typeof target !== 'object' || target === null) {\n return target\n }\n if(map.has(target)) {\n return map.get(target)\n }\n const result = new target.constructor()\n map.set(target,result)\n for(let key in target) {\n if(Object.prototype.hasOwnProperty.call(target, key)) {\n result[key] = _completeDeepClone(target[key],map)\n }\n }\n return result\n }\n </script>\n </body>\n</html>","css":"","js":""}
