clone object in js
var student = {name: "Rahul", age: "16", hobby: "football"};
//using ES6
var studentCopy1 = Object.assign({}, student);
//using spread syntax
var studentCopy2 = {...student};
//Fast cloning with data loss
var studentCopy3 = JSON.parse(JSON.stringify(student));copy object javascript
var x = {myProp: "value"};
var y = Object.assign({}, x);copy object javascript
// es6
const obj = {name: 'john', surname: 'smith'};
const objCopy = {...obj};javascript clone object
let clone = Object.create(Object.getPrototypeOf(obj), Object.getOwnPropertyDescriptors(obj));best way to clone an object in javascript
const person = {
firstName: 'John',
lastName: 'Doe'
};
// using spread ...
let p1 = {
...person
};
// using Object.assign() method
let p2 = Object.assign({}, person);
// using JSON
let p3 = JSON.parse(JSON.stringify(person));clone an object javascript
//returns a copy of the object
function clone(obj) {
if (null == obj || "object" != typeof obj) return obj;
var copy = obj.constructor();
for (var attr in obj) {
if (obj.hasOwnProperty(attr)) copy[attr] = obj[attr];
}
return copy;
}Copyright © 2021 Codeinu
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