Difference between `const var_name` vs `const {var_name}` in JS

Question

const electron = require('electron');
const {app} = electron;

What is the difference between const var_name and const {var_name}? When should I use const var_name or const {var_name}?

This is called _Destructuring assignment_ you can read more about it at MDN https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment — antyrat, May 19 '16 at 15:25

score 2 · Accepted Answer · answered May 19 '16 at 15:35

The following makes the variable "electron" reference what is returned from the require function:

const electron = require("electron")

The following is called a Destructuring assignment and makes the variable "app" reference whatever the property "app" of electron is referencing:

const {app} = electron;

It is the equivalent of writing:

const app = electron.app;

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