if (Array.isArray(obj)) { copy = [];hash.set(obj, copy);for (let i = 0, len =obj.l...
const obj = { name : 'ABC', age : 18, habbit : ['baseball', 'football', ['genshin', 'princess']], family : { son : 'sp', father:'fa' } } const newObj = {} function deepCopy(obj, newObj){ for(k in obj){ if(obj[k] instanceof Array){ const arr = [] deepCopy(ob...
return (cons === 'Array' || cons === 'Object') }// 实现深度拷贝 Array/Objectfunction deepClone(oldObj) { if(typeTrue(oldObj)) { var newObj = oldObj.constructor() for(let i in oldObj) { if (oldObj.hasOwnProperty(i)) { newObj[i] = typeTrue(oldObj[i]) ? deepClone(oldObj...
js实现深拷贝(deepClone) 首先我们要实现一个getType函数对元素进行类型判断,直接调用Object.prototype.toString 方法。 functiongetType(obj){letmap={"[object Boolean]":"boolean","[object Number]":"number","[object String]":"string","[object Function]":"function","[object Array]":"array","[object...
let result = Array.isArray(value) ? [] : {} // 函数直接返回 if (typeof value === 'function') { return value } // 处理引用类型的拷贝 result = initCloneByTag(value, getTag(value)) // 处理循环引用 if (stack.has(value)) { ...
JS 真·深度拷贝(deepCopy) 方法: function deepCopy (data) { let dataTmp = undefined if (data === null || !(typeof data === 'object')) { dataTmp = data } else { dataTmp = data.constructor.name === 'Array' ? [] : {}...
1,2,{a:3}];constshallowCopyArray=[...originalArray];console.log(shallowCopyArray);// 输出:...
constregexpTag='[object RegExp]'functiondeepClone(value,stack=newWeakMap()){if(!isObject(value)){returnvalue}letresult=Array.isArray(value)?[]:{}// 函数直接返回if(typeofvalue==='function'){returnvalue}// 处理引用类型的拷贝result=initCloneByTag(value,getTag(value))// 处理循环引用if(stack...
下面是一个实现深拷贝的JavaScript函数: ```javascript function deepCopy(obj) { if (typeof obj !== 'object' || obj === null) { return obj; } let copy; if (Array.isArray(obj)) { copy = []; for (let i = 0; i < obj.length; i++) { copy[i] = deepCopy(obj[i]); } }...
functiondeepClone(obj) {// 如果值 值类型 或 null ,直接返回if(typeofobj !=='object'|| obj ===null) {returnobj; }letcopy = {};// 如果对象是数组if(obj.constructor===Array) { copy = []; }// 遍历对象的每个属性for(letkinobj) {// 如果 key 是对象的自有属性if(obj.hasOwnProperty...