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Does it handle defining functions? I can’t get them to work.

I'm afraid it cannot, since those functions would need to be compiled into WASM first, and that's something the browser can't do.

What I could add, though, is a bunch of "standard" functions (like the ones found in Hugo, for example).

Noted!

If you already have Go libraries compiling to wasm working then you could just embed a Go interpreter like yaegi [0].

[0] https://github.com/traefik/yaegi

Besides the comment regarding using a Go interpreter, you can definitely compile inside of the browser and then load that WASM module into the current session.

Using which compiler?

Time to learn how to write one?

I didn't say there is already a Go compiler that supports such workflow, rather that the infrastructure doesn't forbid it.

https://www.google.com/amp/s/golangexample.com/go-compiler-r...

Haven’t tried the above, just an example. Tinygo is the one commonly used in the Wasm ecosystem

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