JavaScript

Types and testable code are two of the most effective ways of avoiding bugs. In this tutorial, discover TypeScript best practices while you create a Discord bot from scratch.

With a static site generator back end in place from Part 1, now it's time to implement a Gatsby.js-based front end, host it on Netlify, and get AWS to activate the whole pipeline.

Static websites are simple and fast, but it's also possible to automate updates to them to keep them fresh and relevant. Find out how to generate daily-updated HTML pages that track the latest releases of popular GitHub repositories.

While components have been available in Angular since the beginning, they’re still easy to mess up with common mistakes like people not using them at all, creating components instead of attribute directives, and more. In this article, Toptal Freelance JavaScript Developer Valters Valdersteins differentiates the correct and incorrect ways to use Angular components and illustrates them with examples.

In recent years, React has established itself as the most popular library in the JavaScript universe. However, rather than rest on its laurels, the React team is still working hard to make it better. In the second part of our React tutorial series, Toptal JavaScript Developer Kamil Jakubczak takes a closer look at some of its features, including hooks, the latest addition to React.

Bulletproof data validation is fundamental to implementing a back-end API. Find out how datalize, a Node.js library, makes this easy—and formats your data nicely, too.

The React Context API was been around as an experimental feature for a while now but finally became safe to use in production last year, solving one major problem React problem — prop drilling. In this article, Toptal Freelance Javascript Developer Boris Yordanov will introduce us to the API and illustrate it with two basic web store apps, one built with the Context API and one without it.

In recent years, React went from being an also-ran in the JavaScript universe to the most popular JS library. However, how does React stack up against Angular and VueJS in 2019? In the first part of our React tutorial series, Toptal JavaScript Developer Kamil Jakubczak outlines the reasons behind React’s popularity and explains how to get started on your first React app.

As simple as your RESTful API may be, even internal users will want a JavaScript package that will do all the heavy lifting for them. Why build each CRUD request by hand, or worse, deal with related resources using custom code for every scenario? With ActiveResource.js, you don't have to.