Introduction to TypeScript with unit testing and continuous integration

Learn TypeScript, unit testing & CI with this guide. Boost skills, catch errors early & automate code testing with GitHub Actions. Dive in now!

Introduction to TypeScript with unit testing and continuous integration
A map filled with a pipeline. Image by Jonas Claes.

In this blog post, I'll introduce you to TypeScript, a superset of JavaScript that has helped me write more robust and maintainable code. I'll also share with you how I use unit testing and continuous integration with TypeScript to build high-quality software.

TypeScript introduces static typing and other powerful features that can make your code more reliable and easier to maintain, especially in larger projects. With TypeScript, I can catch errors early and benefit from better tooling support.

But testing your code is just as important as writing it, and that's where unit testing comes in. I'll show you how I use Jest, a popular testing framework for JavaScript, to write unit tests for my TypeScript code. You'll learn how to write effective tests and catch bugs before they cause problems.

And finally, I'll show you how to set up continuous integration using GitHub Actions. By automating the building, testing, and deployment of your code, you can catch issues early and ship software faster. I'll guide you through the process of setting up a CI pipeline, so you can test your code automatically and get fast feedback on your changes.

You can find a GitHub repository containing the below mentioned files here: jonasclaes/2023-tutorial-build-test-deploy

Whether you're new to TypeScript, unit testing, or continuous integration, this guide has something for everyone. I'm excited to share my knowledge and help you take your JavaScript development skills to the next level! So let's get started.