javascript deconstruct object

1const book = {
2    title: 'Ego is the Enemy',
3    author: 'Ryan Holiday',
4    publisher: {
5        name: 'Penguin',
6        type: 'private'
7    }
8};
9
10const {title: bookName =  'Ego', author, name: {publisher: { name }} = book, type: {publisher: { type }} = book } = book;

1Object Destructuring =>
2//
3   The destructuring assignment syntax is a JavaScript expression that makes it
4possible to unpack values from arrays,
5or properties from objects, into distinct variables.
6//
7example:
8const user = {
9    id: 42,
10    is_verified: true
11};
12
13const {id, is_verified} = user;
14
15console.log(id); // 42
16console.log(is_verified); // true 
17

1const wes = {
2  first: 'Wes',
3  last: 'Bos',
4  links: {
5    social: {
6      twitter: 'https://twitter.com/wesbos',
7      facebook: 'https://facebook.com/wesbos.developer',
8    },
9    web: {
10      blog: 'https://wesbos.com'
11    }
12  }
13};
14
15//destructuring
16const { twitter, facebook } = wes.links.social;
17console.log(twitter, facebook); // logs the 2 variables

1let {name, country, job} = {name: "Sarah", country: "Nigeria", job: "Developer"};
2
3console.log(name);//"Sarah"
4console.log(country);//"Nigeria"
5console.log(job);//Developer"
6