Modules & Classes in ES6

Modules:
Module help us with encapsulation by exposing from a given file the pieces we want to be access publically. An export statement will be used for that.

export {
     show: someFunc()
}

Then an import statement is used to import that piece:

import { show } from './my-file.js'

ES6 Features

New features in ES6 are:

• let, const and Block Scoping,
• Arrow Functions =>,
• Default Function Parameters,
• Rest and Spread,
• Object Literal Extensions,
• for…of Loops,
• Octal and Binary Literals,
• Template Literals
• Destructuring

let, const and Block Scoping:

let

let statement allows to declare variables that are limited in scope to the block, statement or expression on which it is used.

Arrow Functions =>

Arrow functions are anonymous functions with shorter syntax than a function.

Arrow function without any arguments.

var geEmployee = () => console.log(‘Employee Name’);

Default Function Parameters:

var getEmployee = function(id = 101){
     console.log(id)
};
getEmployee();

Thanks,
Bimal