object destructuring
const book = {
title: 'Ego is the Enemy',
author: 'Ryan Holiday',
publisher: {
name: 'Penguin',
type: 'private'
}
};
const {title: bookName = 'Ego', author, name: {publisher: { name }} = book, type: {publisher: { type }} = book } = book;Javascript array destructuring
let [a, b] = [9, 5]
[b, a] = [a, b]
console.log(a, b);
//Expected output: 5,9destructuring Array in JavaScript
let [greeting = "hi",name = "Sarah"] = ["hello"];
console.log(greeting);//"Hello"
console.log(name);//"Sarah"destructuring javascript
// destructuring array & nested array & combine array into single array
let person = ["John", "Sandy", "Sam", ["Mike", "Max"], "Diego", "Paul"];
// empty comma is like skipping array index. I skipped "Sam"
const [a, b, , c, ...d] = person;
let friend = [d, "Tom", "Jerry"]
let newFriend = [...d, "Tom", "Jerry"]
console.log(a); // output: "John"
console.log(b); // output: "Sandy"
console.log(c); // output: [ "Mike", "Max" ]
console.log(d); // output: ["Diego", "Paul"]
console.log(friend); // output: [ [ 'Diego', 'Paul' ], 'Tom', 'Jerry' ]
console.log(newFriend); // output: [ 'Diego', 'Paul', 'Tom', 'Jerry' ]mdn destructuring
const x = [1, 2, 3, 4, 5];
const [y, z] = x;
console.log(y); // 1
console.log(z); // 2javascript destructing
/*
* On the left-hand side, you decide which values to unpack from the right-hand
* side source variable.
*
* This was introduced in ES6
*/
const x = [1, 2, 3, 4, 5]
const [a, b] = x
console.log(a) // prints out: 1
console.log(b) // prints out: 2Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
