ES2015

Practice refactoring with ES2015 features.

CodeRoad

CodeRoad is an open-sourced interactive tutorial platform for the Atom Editor. Learn more at CodeRoad.io.

Setup

• install the tutorial package

  npm install --save coderoad-es2015

• install and run the atom-coderoad plugin

Outline

Declaring Variables

Using let & const.

Let

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

This is unlike the var keyword, which defines a variable globally, or locally to an entire function regardless of block scope.

var global = true;
let blockScoped = true;

Const

Writing basic functions continued.

We'll write two more basic functions, this time without any help.