Resources for Web Developers in 2022

React is one of the web’s most popular frameworks for building JavaScript applications. 

If you know what you’re doing, React can drastically simplify how you build, use, and maintain code.

Whether you’re a React newbie or you’re ready for advanced techniques, you can level-up with egghead. Explore our in-depth courses, lessons, and community resources to build more powerful applications and crack open your career.

react

In this lesson we'll look at an overview of how Flux works, setup our application structure and tools, and create our first component.

Flux Architecture: Overview and Project Setup

RxJS is a library for composing asynchronous and event-based programs by using observable sequences. 


rxjs

The use of RxJS Subjects is common, but not without problems. In this lesson we will see how they can be usually safely replaced with plain Observables.

Convert RxJS Subjects to Observables

AngularJS is an open-source JavaScript framework, maintained by Google, that assists with running single-page applications. Its goal is to augment web-based applications with model–view–controller (MVC) capability, in an effort to make both development and testing easier.

angularjs

Webpack is a module bundler for the web. It is incredibly powerful and enables modularity in angular applications. This is the first of several lessons to get you up and going with webpack in Angular applications.

AngularJS with Webpack - Introduction

In Angular, we want to keep our controllers lightweight and specific to the view that it is controlling. To accomplish this, we are going to refactor our categories collection into a CategoriesModel. A recurring theme in Angular 2 is that everything is "just a class". When we create our controllers and services in an Angular 2 style, they are also "just a class". We will see this in action as we convert our controller almost verbatim into a service.

Refactor Angular Controller Logic to Services

In this lesson, we install the Android Software Development Kit (SDK) and the necessary Android API (Application Interface). This is the code base that allows us to run the Android platform on our PC. We also add a couple environment variables and update our PATH environment variable.

Install Android SDK for Ionic

In this lesson we will learn about potential problems that may arise when using Observable.create, a low-level function for creating Observables. In its place, we will use easier helper functions that create Observables in a safe manner.

Replace Observable.create with Observable creation helpers

Twitter API Client for node

Supports both the REST and Streaming API.

twit

We’ll get a real-time stream of tweets, and learn how to filter a stream by keyword, location, and user.

Use the Twitter Stream API with Twit.js

A library designed specifically for a functional programming style, one that makes it easy to create functional pipelines, one that never mutates user data.

ramda

In this lesson we'll look at how you can use Ramda's `unfold` function to generate a list of values based on an initial seed.

Create an Array From a Seed Value with Ramda's unfold

Cycle.js is a framework where your app is described as a simple function taking an event stream as input and outputting an event stream.

cycle

Our app is not yet a BMI calculator, because it only has two sliders, but doesn't show the calculated BMI number. In this lesson we will learn how to export any stream from a child component and use it in the parent component, in order to display the BMI calculation on the DOM.

Export Values from Components through Sinks in Cycle.js

Open source framework for building truly native mobile apps with Angular, TypeScript or JavaScript.

nativescript

One of the exciting benefits you have with NativeScript is the ability to write native code (Java and Objective C) directly in JavaScript/TypeScript allowing you to create a consistent high level api over top of both underlying iOS Objective C/Swift and Android Java apis. In this lesson, we will look at how to design a consistent api that taps into the appropriate native api’s on the target platforms using underlying native libraries.

Develop a consistent plugin api across your Android and iOS NativeScript app

Derivations form the backbone of MobX and come in two flavors: computed values are values that can be derived from the state automatically. And reactions can be used to manage side effects, such as drawing the user interface. In this lesson you will learn how these concepts relate to each other and how they are optimized automatically by MobX.

Derive computed values and manage side effects with MobX reactions

The Observer object has the functions next() and error(). In this lesson we will see the other (and last) function available on observers, complete(), and its purpose.

Perform an Action on Completion with  RxJS Observables

A <canvas> element provides scripts with a resolution-dependent bitmap canvas, which can be used for rendering graphs, game graphics, or other visual images on the fly.

canvas

Learn some of the different ways you can affect the graphical content that you are drawing to a canvas. We'll cover global alpha, global composite operations and shadows.

Canvas Effects

Manually unsubscribing from subscriptions is safe, but tedious and error-prone. This lesson will teach us about the takeUntil operator and its utility to make unsubscribing automatic. 

Use takeUntil instead of manually unsubscribing from Observables

Sass is the most mature, stable, and powerful professional grade CSS extension language in the world.

scss

Writing similar classes with minor variations, like utility classes, can be a pain to write and update. Sometimes just a single character is the only difference between classes and updating the defining parameter means we need to change it for every class name and value. We can write a class one time and the @for directive can write all the minor variations for us. If the similar classes need to be updated, with the help of the @for directive, they only need to be updated once. In this lesson we learn how to leverage the power of the SCSS @for control directive to relieve the pain.

Write similar classes with the SCSS @for Control Directive

Bite-size video tutorials for badass web developers.

egghead

Tangents are opportunities for other lessons. When you find yourself drifting off-topic because you feel you _need_ to explain  some code you wrote, consider how that piece of code fits back into a "How do I?" question, then come up with a separate lesson to capture it.

Stay on Topic

HTML 5 is the structure of our web pages. It is the markup that represents the DOM (document object model).

html

Black is getting awfully boring, let’s add some color to our shapes. 
 
We can use the `fillStyle` method on our `context` to add colors. In this lesson we will look at how we can pass color names, hex values, and rgba values as strings to `fillStyle` to add colors to our graphics. 
 
We’ll also show why the order of where you call methods on `context` matters.

Add color to graphics using HTML Canvas

RxJS is a lot about the so-called "operators". We will learn most of the important operators, one by one. In this lesson, we will see our first creation operator: of().

 If you want to deliver synchronous values in the sequence, you use `of()` instead of writing boilerplate.

Deliver Synchronous Values with the RxJS of() Operator

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

express

Sometimes you just need to serve existing files. In this lesson we'll examine how to use functionality built into Express to do just that.

Serve static files with express

This lesson shows what can be learned next as a continuation of this course, and gives a recap on the core concepts: main for pure logic, drivers for side effects, run() to connect main and drivers, sources for read effects, sinks for write effects, and nesting Cycle.js apps to work as components.

Overview of Cycle.js

Fast, reliable, and secure dependency management.

yarn

Yarn is a new JavaScript package manager that aims to be speedy, deterministic, and secure. See how easy it is to drop yarn in where you were using npm before, and get faster, more reliable installs.