FED17. 深拷贝
描述
请补全JavaScript代码，要求实现对象参数的深拷贝并返回拷贝之后的新对象。HTML/CSS/JavaScript 解法, 执行用时: 1741ms, 内存消耗: 77772KB, 提交时间: 2021-12-14
{"css":"","js":"","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 Map()) => {\n // 补全代码\n if(target === null || typeof target !== 'object') return target\n const constructor = target.constructor\n if(/^(Function|Date|RegExp|Map|Set)$/i.test(constructor.name)) return new constructor(target)\n if(map.get(target)) return map.get(target)\n map.set(target, true)\n const clone = Array.isArray(target) ? [] : {}\n for(let key in target) {\n if(Object.hasOwnProperty(key)) {\n clone[key] = _completeDeepClone(target[key])\n }\n }\n return clone\n }\n </script>\n </body>\n</html>","libs":[]}
HTML/CSS/JavaScript 解法, 执行用时: 1744ms, 内存消耗: 77756KB, 提交时间: 2021-12-02
{"css":"","js":"","html":"<!DOCTYPE html>\n<html>\n <head>\n <meta charset=utf-8>\n </head>\n <body>\n \t\n <script type=\"text/javascript\">\n const _completeDeepClone = (target, map = new Map()) => {\n // 补全代码\n if (target === null || target === void 0) {\n return target;\n }\n const objConstructor = target.constructor;\n if (typeof target !== \"object\") {\n return target;\n } else if (objConstructor === Date) {\n return new Date(target.getTime());\n } else if (objConstructor === RegExp) {\n return new objConstructor(target);\n }\n\n const hit = map.get(target);\n if (hit) {\n return hit;\n }\n\n const copy = Array.isArray(target) ? [] : {};\n\n map.set(target, copy);\n\n Object.keys(target).forEach((key) => {\n copy[key] = _completeDeepClone(target[key], map);\n });\n\n return copy;\n }\n </script>\n </body>\n</html>","libs":[]}
HTML/CSS/JavaScript 解法, 执行用时: 1744ms, 内存消耗: 77772KB, 提交时间: 2021-12-16
{"css":"","js":"","html":"<!DOCTYPE html>\n<html>\n <head>\n <meta charset=utf-8>\n </head>\n <body>\n \t\n <script type=\"text/javascript\">\n const _completeDeepClone = (target, map = new Map()) => {\n // 补全代码\n if(typeof target!=='object'||target===null){\n return target\n }\n const constructor=target.constructor\n if(/^(Function|RegExp|Date|Set|Map)$/i.test(constructor.name)){\n return new constructor(target)\n }\n if(map.get(target)){\n return map.get(target)\n }\n map.set(target,true)\n let clone=Array.isArray(target)?[]:{}\n for(prop in target){\n if(target.hasOwnProperty(prop)){\n clone[prop]=_completeDeepClone(target[prop],map)\n }\n }\n return clone\n }\n </script>\n </body>\n</html>","libs":[]}
HTML/CSS/JavaScript 解法, 执行用时: 1744ms, 内存消耗: 77772KB, 提交时间: 2021-12-07
{"css":"","js":"","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 Map()) => {\n if(target === null) return target\n if(typeof target !== 'object') return target\n const constructor = target.constructor\n if(/^(Function|RegExp|Date|Map|Set)$/i.test(constructor.name)) return new constructor(target)\n if(map.get(target)) return map.get(target)\n map.set(target, true)\n const cloneTarget = Array.isArray(target) ? [] : {}\n for(prop in target) {\n if(target.hasOwnProperty(prop)) {\n \tcloneTarget[prop] = _completeDeepClone(target[prop], map)\n }\n }\n return cloneTarget\n}\n\n </script>\n </body>\n</html>","libs":[]}
HTML/CSS/JavaScript 解法, 执行用时: 1746ms, 内存消耗: 77772KB, 提交时间: 2021-12-15
{"css":"","js":"","html":"<!DOCTYPE html>\n<html>\n <head>\n <meta charset=utf-8>\n </head>\n <body>\n \t\n <script type=\"text/javascript\">\n const _completeDeepClone = (target, map = new Map()) => {\n if (typeof target !== \"object\" || target === null) return target;\n\n const constructor = target.constructor;\n if (/^(Function|RegExp|Date|Map|Set)$/i.test(constructor.name)) {\n return new constructor(target);\n }\n\n if (map.get(target)) {\n return map.get(target);\n }\n\n map.set(target, true);\n let resData = Array.isArray(target) ? [] : {};\n\n for (const key in target) {\n if (target.hasOwnProperty(key)) {\n resData[key] = _completeDeepClone(target[key], map);\n }\n }\n return resData;\n};\n\n </script>\n </body>\n</html>","libs":[]}