js clone code example

Example 1: 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));

Example 2: clone javascript object

let clone = Object.assign({}, objToClone);

Example 3: javascript clone object

var x = {myProp: "value"};
var xClone = Object.assign({}, x);

//Obs: nested objects are still copied as reference.

Example 4: js array clone

let clone = [...myArray]

Example 5: js clone element

// Syntax:
let newClone = node.cloneNode([deep])

// Example:
let p = document.getElementById("para1")
let p_prime = p.cloneNode(true)

Example 6: make copy of object javascript

var x = {key: 'value'}
var y = JSON.parse(JSON.stringify(x))

//If you do not use Dates, functions, undefined, regExp or Infinity within your object