JavaScript Fundamentals

JavaScript Introduction

JavaScript is THE programming language for the web, and it's becoming more and more important in other areas as well. In this module we'll take a first look at the language and how to make our lives easier by using it efficiently.

• Why is JavaScript Important?
• What is ECMAScript?
• Performance
• Picking the right Libraries
• Developer Tools

JavaScript Language Fundamentals

In this module, we'll talk about the very basics of JavaScript. JavaScript can be a very tricky language, so we'll try to explain a couple of its quirks as well. This way, we can avoid surprises later.

• Using Variables
• Primitives and Objects
• Functions: more powerful than you'd expect
• Understanding Scope
• Error Handling
• Best Practices
• Strict Mode
• LAB - JavaScript Language Fundamentals

JavaScript Collections

Collections are a big part of OO programming, they allow you to map one-to-many or many-to-many relationships, as well as let you work with sets of data. In this module, we'll take a look at the different types of collections in JavaScript, and their uses.

• Storing multiple values in Arrays
• Useful Functions and Operators
• Using Objects as Maps
• Sets, Maps and Others
• LAB - Collections

DOM Interaction with JavaScript

In this module, we will learn how to add client-side interactivity to our applications with JavaScript. We will learn how the DOM works, and how we can manipulate it, as well as handling user events in the browser.

• Introduction to JavaScript
• Understanding the DOM
• DOM Selection and Manipulation
• Event Handling
• LAB: DOM Interaction with JavaScript

Object Oriented JavaScript

Since ECMAScript 2015 we have native classes in JavaScript. Classes can be seen as templates for JavaScript Objects, encapsulating data and code to work on that data. We'll take a closer look in this module.

• Class syntax
• Prototypes
• Using Properties to encapsulate your fields
• The 'this' keyword explained
• LAB - Object Oriented JavaScript

Advanced JavaScript Techniques

Now that you know the basics, we can look at some more advanced JavaScript techniques. In this chapter we will look at some more advanced operators and functions in JavaScript. We are also going to look at the other paradigm aside from OOP in JavaScript: functional programming.

• Deconstructiong Objects
• The Spread Operator
• How to Copy Objects
• Optional Parameters in Functions
• Functional Programming
• LAB - Advanced JavaScript Techniques

Dealing with Async Code in JavaScript

Asynchronous code is really handy in JavaScript, since it allows us to keep the UI responsive while running a lot of code. In this module we'll see how to make our code run asynchronously.

• Threading in JavaScript
• Using Callbacks
• Event Handling
• Working with Promises
• Async and Await
• LAB - Dealing with Async Code

Structuring JavaScript Applications and Tooling

Hey new JavaScript developer! You are using WebPack right? WebPack? Yes, and Gulp and npm, you need those. And definitely use TypeScript. It's soo good... If your face looks like a big question mark right now, that's quite normal. Setting up a JavaScript project can be quite the challenge. It's easy to get lost in the overwhelming amount of tools and best practices. In this module we'll create some clarity about these tools and teach you how to set up a modern JavaScript project.

• Using Libraries
• Content Delivery Networks
• Getting Libraries with npm
• Modules versus the Global Object
• Bundling and Minification
• PolyFills and Transpilers
• Typescript
• Using Task Runners
• Tools for Code Quality
• LAB - Structuring an Application

Working with Frameworks

Yes you can do DOM interaction yourself, but ... yeah maybe let a framework do it? In this chapter we will look at how frontend development changed over time and how we came to using component-based frameworks. Which framework? Good (highly debated) question. We will talk shortly about the big three: Angular, React and Vue; but stay unopinionated.

• The Evolution of Web Development
• Framework Overview
• LAB - Building a Frontend with a Framework

Talking to the Server

JavaScript runs on the client, data is stored on servers. At some point JavaScript needs to talk to the server to get, update, ... some data. In this chapter we will see how to talk to a REST service using the fetch API. We will briefly show how you can make that REST service using server-side JavaScript, a.k.a. nodejs.

• Rest Service
• Server-Side JavaScript
• Fetching Data with the Fetch API
• Syncing the Data
• LAB - Consuming a Web API

Using Browser APIs

DOM interaction, fetch API, setTimout, ... all calls JavaScipt makes to the browser: "hey borwser, can you do this for me?". The browser gives a lot more APIs to JavaScript developers. In this chapter we look at some commonly used browser APIs.

• The Window Object
• Storing Data on the Client
• Dynamic Graphics
• Accessing the File System
• Device APIs
• Check Compatiblity