Bun is a new runtime for server-side JavaScript, optimized for speed and performance, and developer experience.
Bun is a JavaScript server runtime.
Like Node.js.
But different.
Here’s why you should learn about Bun:
- it is modern
- it is fast (claims to be a lot faster than alternatives (Node.js and Deno)
- provides many nice things to us developers (DX = developer experience)
- a lot of interesting projects are built upon Bun
- built-in support for TypeScript
- built-in support for JSX
This is already a compelling list.
What’s interesting is that Bun is meant as a drop-in replacement for Node.js, which means you can use it in most projects simply swapping npm run with bun run and that’s it, you switched to Bun.
I want to mention one good reason to use Bun, is to use Elysia or Hono, which are HTTP servers optimized for Bun, and they provide very nice features, including built-in support for JSX/TSX templates, which is my favorite thing to build interfaces in JavaScript/TypeScript.
In this unit we’ll learn the most interesting aspects of Bun.
Lessons in this unit:
| 0: | ▶︎ Introduction |
| 1: | Installing Bun |
| 2: | Running your first Bun program |
| 3: | Working with packages |
| 4: | Bun's built-in features |