We've just released a new full-length tutorial on the freeCodeCamp.org YouTube channel that will teach you how to use TypeScript with React.

If you’ve been building React apps but feeling like you’re missing a layer of safety and clarity, this is the course for you. You will learn how to refactor a real-world project to be fully type-safe, more readable, and significantly easier to maintain.

In this tutorial, Rachel Johnson walks you through the entire process, including:

  • Refresher on Vanilla TypeScript: A quick warm-up to get you back in the mindset.

  • Typing useState: Moving from inferred types to explicit, foolproof state management.

  • Component Architecture: How to define custom prop types, handle functional component returns, and keep your code modular.

  • Function Props: Mastering the common pattern of passing callbacks between components with confidence.

By the end, you’ll have a foundational understanding of how TypeScript fits into a modern React workflow, helping you catch bugs before they even reach your browser.

Watch the full course on the freeCodeCamp.org YouTube channel (1-hour watch).