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I think Deno and Bun are the two successful attempts at a faster tsc :)
by smarx007 2y ago
I think Deno and Bun are the two successful attempts at a faster tsc :)
- keturakis 2y agoBoth Deno and Bun still use current tsc for type checking
- madjam002 2y agoThey just strip types and don’t do any type checking
- Cthulhu_ 2y agoThose are runtimes primarily, not compilers/type checkers. Likewise, TSC is not a TS runtime.
- smarx007 2y agoWell, of course. But TSC output (transpiled JS source code) is then run by a JS runtime like Node that has a VM like V8 that makes an internal representation for the JS code. Using Bun or Deno allows you to go to a VM IR from the TypeScript directly without a need for TSC transpilation into JS first. But as @keturakis pointed out (thanks!), Deno/Bun still rely on TSC, which I was not aware of.
- morcus 2y agoBun doesn't even support a way to check types, just remove them. > Note — Similar to other build tools, Bun does not typecheck the files. Use tsc (the official TypeScript CLI) if you're looking to catch static type errors.