obj[attr].clone() : obj[attr]; }returncopy; };vara = {name:'Sherry', age:12, interests:['Reading', 'Traveling', 'Running']};varb = a.clone(); 3.自定义的deep copy方法 functionclone(obj) {//Handle the 3 simple types
//对array添加一个克隆方法 //Array.prototype.clone = function() {//var newArray = [];//for(var i = 0; i < this.length; i++) {//if(typeof(this[i]) == "object" || typeof(this[i]) == "function") {//newArray[i] = this[i].clone();//}//else {//newArray[i] = t...
Example 1. Clone the Object Using Object.assign() // program to clone the object// declaring objectconstperson = {name:'John',age:21, }// cloning the objectconstclonePerson =Object.assign({}, person);console.log(clonePerson);// changing the value of clonePersonclonePerson.name ='Peter'...
What is the simplest way to clone an object in JavaScript?Craig Buckler
We can clone an object by making a new object and then using the spread syntax to enumerate an object’s content inside it as its own. It seems like the right way, but it creates a shallow copy of the data. constobj={a:1,b:{c:2}}constclone={...obj};// creates a shallow cop...
Here is an example that shows those two functions in use:const clone = require('lodash.clone') const clonedeep = require('lodash.clonedeep') const externalObject = { color: 'red', } const original = { a: new Date(), b: NaN, c: new Function(), d: undefined, e: function () {}...
Property/method value type: Node object JavaScript syntax: - myNode.cloneNode(aSwitch) Argument list: aSwitch Indicates whether a deep or shallow clone is required 马克-to-win:: if it is false, then it is shallow, then its child is not copyed. ...
functionstructuralClone(obj){returnnewNotification('',{data:obj,silent:true}).data;}constobj=/* ... */;constclone=structuralClone(obj); 它基本触犯了浏览器内的权限机制,所以怀疑这个可能会非常慢。出于某种原因,Safari浏览器总是返回undefined。可以使用在线示例 ...
深⼊理解JavaScript中的对象复制（ObjectClone）JavaScript中并没有直接提供对象复制(Object Clone)的⽅法。因此下⾯的代码中改变对象b的时候，也就改变了对象a。a = {k1:1, k2:2, k3:3};b = a;b.k2 = 4;如果只想改变b⽽保持a不变，就需要对对象a进⾏复制。⽤jQuery进⾏对象复制 在可以使...
Now let see what libraries that people like to use to clone an object in JavaScript. jQuery jQuery.extend(): Merge the contents of two or more objects together into the first object. clone 2 object using Jquery extend jQuery also has a.clone()method for a deep copy of the element. ...