What are the differences between Jest and Vitest?

What are the differences between Jest and Vitest?

Jest is a widely used testing framework for JavaScript, while Vitest is a newer alternative designed for Vite projects. Vitest aims for faster performance and better integration with modern front-end tools.

Which one should I choose for my React project?

If you're using Vite, Vitest might be a better choice due to its speed and compatibility. For traditional setups, Jest is still a solid option with a larger community and more plugins.

Can I use Vitest with non-Vite projects?

Yes, you can use Vitest with non-Vite projects, but it’s optimized for Vite. You might find Jest more straightforward for non-Vite setups.

What are some key features of Jest?

Jest offers features like snapshot testing, a powerful mocking library, and built-in code coverage reporting, making it very versatile.

Are there any performance benchmarks comparing them?

Yes, there are benchmarks available that show Vitest generally performs faster in many scenarios, especially with large test suites.