Vanilla JavaScript

Julian Motz examines how variables are declared in JavaScript, and introduces the three different types of declaration and their uses.

Vildan Softic looks at using monkey patching to alter code at runtime, arguing developers should understand how to safely use this controversial technique

Paul Wilkins demonstrates various JavaScript refactoring techniques to make your code more generic & strike the balance between readability and reusability.

Myles English shows how to build a jam station that displays the musical chord changes while a song plays, allowing you to play along. No jQuery required!

Peter Bengtsson walks through building a wrapper for the Fetch API, step-by-step, to cache fetched AJAX results and avoid repeated requests to the server.

Dan Prince looks at factory functions in JavaScript, examining the different types, their use cases & how they allow us to separate data from computations.

M. David Green demonstrates how to implement function composition in JavaScript, a technique which lends itself to writing cleaner and more succinct code.

Mark Brown demonstrates how to make a simple game loop in JavaScript, paving the way for you to start making your own browser based games and animations.

Camilo Reyes shows how to use a throttle function to manage rapidly fired events, like window scrolling events, and compares this to the debounce function.

Jani demonstrates techniques for writing self-documenting code that make it easier to understand, reduce the need for comments, and improve program design.

Wondering how to validate input with JavaScript? Kevin Yank takes a look at what regular expressions are and what they can do for you.

Yaphi walks you step-by-step through creating a slideshow with JavaScript and CSS, with practical tips on ensuring accessibility for all.

Jonathan introduces Cocycles, a new code search engine that can read code and search open-source code snippets by functionality.

Refactoring a legacy code base? Moritz Kröger shows you how to achieve maintainable JavaScript with tests, linting and modularization. 

Forget jQuery plugins, Giulio Mainardi shows how do smooth scrolling in vanilla JavaScript, and refactors an ES6 library to ES5.

M. David Green demonstrates how using the functional programming techniques of mapping & reducing can lead to cleaner code which is easy to read & maintain.

Dan Prince compares 6 different methods for binding the value of the this keyword in react components, including new methods from ES2015 and ES2016.

Learn how to create simple 3D graphics for the web without WebGL. Jérémy Heleine teaches you how to build your own 3D engine from scratch with JavaScript.

Learn how to create arrays in JavaScript, and how to manipulate them using their length property.

Mark Brown shows how to to write simpler programs with fewer bugs by using techniques from functional programming in JavaScript

Jeff Mott helps you truly master the concept of closures in JavaScript using simple examples, demonstrating how they would be implemented from scratch.

Peter Bengtsson teaches you what a state is and how to persist it. The article includes an example of persisting a state with AngularJS.

A quick tip from Jezen Thomas on how you can stop writing for loops and start using map — a technique that makes for cleaner, more readable code.

Craig looks at requestIdleCallback, a new API designed to improve page performance by running less-critical background tasks at the optimum time.

Tim Severien shares a variety of tips and tricks to help you write readable and more maintainable code — something your future self will thank you for.

In this article Paweł Zagrobelny discusses the pros and cons of using a framework and what you should consider before starting your project.

In this tutorial Ritesh Kumar shows how the network intercepting feature of Service Workers works, making a website that runs even when the user is offline.

Peter Bengtsson shows how to build a web page able to detect the distance of your face from the screen with JavaScript.

Ivan Dimov explores the possibilities offered by the Web Speech API and shows us how to build a voice-controlled audio player.

Microsoft's David Catuhe explains JavaScript's recent advances in the area of asynchronous code.