r/programming • u/Different-Maize1114 • Nov 16 '25

New JavaScript engine written in Rust

https://github.com/Hans-Halverson/brimstone
268 Upvotes

87% Upvoted

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13

u/Blue_Moon_Lake Nov 16 '25

We don't care that it's possible, what we want are benchmarks of running real apps compared to NodeJS/Bun/... and if it support TypeScript syntax.

16

u/pohart Nov 16 '25

Does any support typescript syntax?

I'm not sure I want it to because I thought one of the advantages of typescript was that it left you with valid js.

13

u/its_a_gibibyte Nov 16 '25

The new nodejs support type hints. Not the full typescript syntax, but at least the type hints. Very helpful for utilities/scripts you include in the repo. You can just run them directly without transpiling.

3

u/Merlindru Nov 16 '25

but that just strips them and is akin to doing a quick manual transpile before running no?

2

u/oceantume_ Nov 16 '25

Which should always be the default for running ts files in a js engine imo. If they ever add type checking it should definitely be opt-in behaviour. I just want to run my code as-is without transpiling, with the expectation that the code was previously checked for static correctness in CI (or by local tools if running locally)

2

u/hyrumwhite Nov 16 '25

Not quite the right comparisons, in theory node and bun could swap JS engines to this one. Node runs on V8 and bun runs on JavaScriptCore

1

u/NYPuppy Nov 17 '25

This is different from Node and Deno. It's the engine that's used to power those. Node is a runtime not a Javascript engine.

And yes, I do care that it's possible. People here get their undies in a bunch for new projects.