what is the difference between const and const {} in javascript

Question

When I study electron, I found 2 ways of getting BrowserWindow object.

const {BrowserWindow} = require(\'electron\')

and

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Answer 1

const {BrowserWindow} = require('electron')

Above syntax uses ES6. If you have an object defined as:

const obj = {
    email: "hello@gmail.com",
    title: "Hello world"
}

Now if we want to assign or use email and title field of obj then we don't have to write the whole syntax like

const email = obj.email;
const title = obj.title;

This is old school now.

We can use ES6 Destructuring assignment i.e., if our object contains 20 fields in obj object then we just have to write names of those fields which we want to use like this:

const { email,title } = obj;

This is ES6 syntax-simpler one It will automatically assign email and title from obj, just name has to be correctly stated for required field.