What is Bun?
What Makes Bun Lightning-Fast? ⚡
Zig — a low-level, high-performance language akin to the likes of C or Rust. This choice ensures that Bun.js can sprint like a cheetah when it comes to running your applications.
So, when it comes to speed, Bun.js isn’t just covered; it’s revving its engine for peak performance!
Speed is Bun’s defining feature. It’s not just fast; it’s up to
4x faster at startup compared to Node.js. This speed advantage becomes even more apparent when handling TypeScript files, which require transpilation before running on Node.js. For instance, when executing a basic “hello world” TypeScript file, Bun outpaces esbuild by an impressive 5x margin on Node.js.
Bun runs a “hello world” TypeScript file 5x faster than esbuild with Node.js.
What truly sets Bun apart is its choice of engine. While Node.js relies on Google’s V8 engine, Bun takes a unique route by leveraging Apple’s WebKit engine. WebKit, the powerhouse behind Safari and a staple on billions of devices worldwide, is celebrated for its speed, efficiency, and a proven track record of exceptional performance spanning decades. With Bun, you’re tapping into this battle-tested technology, ensuring a development experience that’s not only fast but also reliable and efficient.
Bun shines with its focus on speed and simplicity. Its native compatibility with Node.js and TypeScript, along with its complete toolkit, set it apart from the competition.
Can I use Bun for server-side rendering with React?
Absolutely! Bun supports server-side rendering with React, making it a powerful choice for building dynamic web applications.
What kind of performance boost can I expect with Bun compared to other runtimes like Node.js?
According to benchmarks, Bun delivers impressive performance, significantly outperforming Node.js in terms of requests per second. It’s a great choice for applications where speed is crucial.
Consider using Bun if:
- Speed is a top priority, especially for applications running at the edge.
- You work with TypeScript and want seamless integration and performance.
- You prefer a toolkit that includes a package manager, test runner, and bundler in one package.
- You appreciate the battle-tested technology of Apple’s WebKit engine.
However, if you have a well-established workflow with other tools or if your project has unique requirements that Bun doesn’t meet, you may want to stick with your current setup. Ultimately, the decision should align with your project’s goals and your development preferences.