How to read these pages
The playground runs your code in the browser’s JavaScript engine, not in Bun. Bun’s transpiler, resolver, semver and bundler run as WebAssembly. Everything else (Bun.*, bun:*, node:*) is a JavaScript shim, so coverage is uneven. These pages list what works today.
| Label | Meaning |
|---|---|
| Works | Behaves like Bun for normal use. |
| Partial | The common parts work; the notes list what’s missing. |
| Stub | Imports fine, but its functions throw or do nothing. |
| Missing | Not available. Importing it fails, or the property is undefined. |
| Untested | Expected to work, but not checked yet. |
Sections:
- Browsers: which browsers run the playground.
- Bun APIs: the
Bunglobal,bun:sqlite,bun:test,import.meta. - Node built-ins: every
node:*module. - Toolchain: transpiler, module resolution, CommonJS,
bun install, the bundler. - Frameworks: projects known to run.
The status comes from reading the playground’s source and from the bundled examples, checked in Chrome. Found something wrong? Open an issue.