JavaScript® (often shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles.

javascript

This course takes a look at the features that JavaScript has available with ES6 (ECMAScript 2015). It is a "montage" from several instructors.

ECMAscript 6 introduces the "arrow function" as a shortcut for creating anonymous functions with `this` scope bound.

Arrow Function => in ES6

Block scoping can be surprising, and sometimes confusing, in Javascript. With es6, we have access to the `let` keyword to remove this pain.

The let keyword in ES6

With ECMAscript 6 we get the luxury of default parameters for our functions.

Default Values for Function Parameters in ES6

Read only variables are available in JavaScript (es6/es2015).  We will use const declarations and their benefits, like read only and block scope.

const Declarations in es6 (ES2015)

Shorthand properties allow you to compose complex objects from other objects.

Shorthand Properties in ES6

Building on the ES6 Shorthand Properties lesson, John shows the other new Object Enhancements in ES6 that will help you write less code and easily create complex Objects.

Object Enhancements in ES6

The spread operator allows you to "explode" an array into its individual elements.

Using the ES6 spread operator

ECMAscript 6 lets us use string templates to gain a lot more control over strings in JavaScript.

Use Template Literals in ES6

ECMAscript 6 destructuring provides flexible options for variable assignment. 

Destructuring Assignment in ES6

ES6 (ES2015) introduces a [standardized module format](http://babeljs.io/docs/learn-es2015/#modules) to Javascript. We'll take a look at the various forms of defining and importing modules. Using [Webpack](http://webpack.github.io/) to bundle up our modules and [Babel](http://babeljs.io/) to transpile our ES6 into ES5, we'll put this new module syntax to work within our project. Then we'll examine how to import 3rd party packages from npm, importing [lodash](https://lodash.com/) with the `_` underscore alias using the ES6 module syntax.

ES6 Modules (ES2015) - Import and Export

Promises in JavaScript (es6/es2015). Creating and using promises with ECMAscript 2015 in your JavaScript application.

Promises with ES6

Generators in ECMAscript 6 are first-class coroutines that produce encapsulated suspended execution contexts. Whew! Yield values and iterate over them until no more values exist in the generator. We'll talk more about practical use later ;)

ES6 (ES2015) - Generators

A brief introduction to Maps and WeakMaps with ES6, the usage of and difference of Maps and WeakMaps.

Maps and WeakMaps with ES6

Not only can you provide default values when using ES6 parameter object destructuring, but you can also require the presence of certain properties

ES6 Parameter Object Destructuring with Required Values 

In this lesson we will go over ES6 or ECMAScript 2015 Rest Parameters.  We will cover what they are, how they work, how they compare to the arguments keyword, and why they are more versatile. 

Learn ES6 (ECMAScript 2015)

John Lindquist

Course Content