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;destructuring objects
({ a, b } = { a: 10, b: 20 });
console.log(a); // 10
console.log(b); // 20
// Stage 4(finished) proposal
({a, b, ...rest} = {a: 10, b: 20, c: 30, d: 40});
console.log(a); // 10
console.log(b); // 20
console.log(rest); // {c: 30, d: 40}Object destructuring
Object Destructuring =>
//
The destructuring assignment syntax is a JavaScript expression that makes it
possible to unpack values from arrays,
or properties from objects, into distinct variables.
//
example:
const user = {
id: 42,
is_verified: true
};
const {id, is_verified} = user;
console.log(id); // 42
console.log(is_verified); // truedestructured object
let renseignement = ['voleur' , '10' , 'spécialité'] ;
let [classe , force, magie] = renseignement ;
console.log(classe) ;
console.log(force) ;
console.log(magie) ;destructuring
var foo = ['one', 'two', 'three'];
// without destructuring
var one = foo[0];
var two = foo[1];
var three = foo[2];
// with destructuring
var [one, two, three] = foo;Array Destructuring
const foo = ['one', 'two', 'three'];
const [red, yellow, green] = foo;
console.log(red); // "one"
console.log(yellow); // "two"
console.log(green); // "three"Copyright © 2021 Codeinu
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