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));clone javascript object
let clone = Object.assign({}, objToClone);object clone javascript
const target = { a: 1, b: 2 };
const source = { b: 4, c: 5 };
const returnedTarget = Object.assign(target, source);
console.log(target);
// expected output: Object { a: 1, b: 4, c: 5 }
console.log(returnedTarget);
// expected output: Object { a: 1, b: 4, c: 5 }how to clone an object
const first = {'name': 'alka', 'age': 21}
const another = Object.assign({}, first);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));javascript clone object
// syntax: let <newObjectName> = {...<initialObjectName>};
// example:
const me = {
name: 'Jakes',
age: 30,
};
const friend = {...me};
friend.age = 27;
console.log(friend.age); // 27
console.log(me.age); // 30
// -----------------------------
// BAD
// -----------------------------
const me = {
name: 'Jonas',
age: 30,
};
const friend = me;
friend.age = 27;
console.log(friend.age); // 27
console.log(me.age); // 30Copyright © 2021 Codeinu
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