A First Look at Bun: Will It Take Node’s Crown?
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Is it as fast as people are saying? How stable is it? Is it really better than Node? And can I use it with continuous integration?
What Is Bun?
Plus, it has a really cute mascot.
How Does Bun Compare to Deno and Node?
While Bun is inspired by Node and Deno, it is also clearly attempting to improve development experience and productivity by providing a batteries-included toolset.
Bun takes features from Deno, like shipping as a single binary and having native TypeScript support.
Compared to Node, Bun offers more features while striving to still be compatible:
Being in the beta stage, however, means that Bun still has some quirks:
Documentation is limited, but Bun’s Discord is very active and a great source of knowledge.
No native Windows support (works with WSL, though)
Bun can get stuck while installing packages, fetch is not reliable, and, although it never happened to me, Bun can occasionally segfault.
Bun is not 100% compatible with Node yet. Not every npm package works. Express, for instance, is not yet functional.
Publishing to the npm registry does not work.
Various breaking changes will occur before the APIs and the CLI are stable.
Bun has a few distinct quality-of-life characteristics of its own:
Fast built-in sqlite3 module (MySQL and PostgreSQL are also planned)
.toml, and CSS support (no extra loaders required)
Built-in framework support and optimizations for React and Next.js
Built-in Foreign Functions Interface (FFI) for low-level calls to ABI-supporting languages such as C, Rust, or Kotlin
Option to copy errors as Markdown (for rapid sharing)
Published at DZone with permission of Tomas Fernandez. See the original article here.
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