What is Bun?
What is a Runtime?
Runtimes in Browsers
Node.js as a Runtime
Bun comes equipped with an impressive array of features designed to simplify your development process:
1. TypeScript and JSX Support
Out of the box, Bun provides robust support for TypeScript and JSX, allowing you to seamlessly work with these technologies.
bun run index.tsx # Run TypeScript and JSX files effortlessly
2. Command-Line Tools
Bun offers a variety of command-line tools, including a test runner, script runner, and a Node.js-compatible package manager. These tools are not only faster than existing alternatives but can also be seamlessly integrated into your existing Node.js projects with minimal changes.
bun run start # Run scripts
bun install <pkg> # Install packages
bun build ./index.tsx # Bundle projects for browsers
bun test # Run tests
bunx cowsay "Hello, world!" # Execute packages
3. Development and Production
While Bun is still under development, it's a promising solution to speed up your development workflows. You can also use it to run simpler production code in resource-constrained environments, such as serverless functions.
4. Node.js Compatibility
Bun aims to provide more complete Node.js compatibility and seamless integration with existing frameworks, making it a versatile choice for a wide range of projects.
Why Choose Bun?
Bun is designed with several key goals in mind:
One of Bun's standout features is its remarkable speed. In fact, processes initiated with Bun start approximately four times faster than their Node.js counterparts.
2. TypeScript and JSX Support
3. ESM & CommonJS Compatibility
Whether you prefer ES modules (ESM) or CommonJS, Bun has you covered. It recommends ES modules but remains compatible with CommonJS, ensuring flexibility for developers.
4. Web-Standard APIs
5. Node.js Compatibility
While Bun encourages ES modules, it also strives for full compatibility with Node.js globals (e.g., process, Buffer) and modules (e.g., path, fs, http). This ongoing effort ensures smooth transitions for existing Node.js projects.
To get started with Bun or explore its features in more detail , check out the official documentation and the Bun GitHub repository (https://bun.sh/).