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8449 :: Typescript as compilation target

• jorjun_arch (orginal) [2021-09-22T15:38:47+02:00] view original

  If I could use Nim to replace my Angular & node dev, currently done with typescript, I would be so happy... desperately missing operator overloading.

  Wouldn't this be much more straightforward than targeting vanilla JS, anyway? But I understand there will be some language impedance... anyway, would dearly like to read thoughts.. I want to use Nim, but I can't use it right now - with an established asset base, if I could I would jump immediately as I prefer to encode IP with an elegant and fast-moving language. Typescript gives the word 'conservative' a bad name.

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• Araq (orginal) [2021-09-22T15:48:13+02:00] view original

  I don't know enough about TypeScript to answer this question well, but... Patching the JS codegen so that it doesn't throw away the type information that we have easily available is not a hard project and would be a welcome improvement.

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• juancarlospaco (orginal) [2021-09-22T16:12:56+02:00] view original

  For NodeJS, feel free to request and contribute features: https://github.com/juancarlospaco/nodejs

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• juancarlospaco (orginal) [2021-09-22T16:25:32+02:00] view original

  I think would be nice to patch the JavaScript codegen to add types,

  ...but using Facebooks FlowType, because is literally plain vanilla JavaScript with comments, types go inline tiny comments, kinda /*: int */, that way it can still run directly in anything that has a JavaScript interpreter, and you do not lose strict static typing, I would be interested on that.

  Also making Nim comments emit JavaScript comments would be nice anyway.

  See https://flow.org/en/docs/types/comments

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• alexeypetrushin (orginal) [2021-09-22T19:29:14+02:00] view original

  I think it would be more correct to say integrate Nim with JS/TS (and Angular / React / Svelte etc.).

  So it would be possible to convert some part of project to Nim and make it work well with the rest of the project done in JS/TS.

  I also would like to be able to do that and would use Nim instead of TS.

  But the way Nim currently works, it replaces JS/TS, instead of integrating with it. And it makes pretty much impossible Nim usage in FrontEnd Development.

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• Araq (orginal) [2021-09-22T19:54:44+02:00] view original

  Interfacing with the JS world is possible and frequently done...

  But the way Nim currently works, it replaces JS/TS, instead of integrating with it.

  Yeah well, what does that even mean...

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• xigoi (orginal) [2021-09-22T21:44:22+02:00] view original

  What trouble do you have using Nim in a project that's primarily JS? I'm doing that and it works flawlessly.

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• alexeypetrushin (orginal) [2021-09-22T21:52:03+02:00] view original

  Yes, I was wrong, Nim indeed integrates with JS. I should have said that I haven't found a good way to integrate it in my project.

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• xigoi (orginal) [2021-09-23T07:20:17+02:00] view original

  <script lang="nim">...</script>

  Wouldn't this require Nim to be compiled in the browser?

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• alexeypetrushin (orginal) [2021-09-23T11:29:24+02:00] view original

  No, it should be same as <script lang="ts">...</script> in Svelte. It's compiled by node.js svelte compiler, the browser sees plain JS only.

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• juancarlospaco (orginal) [2021-09-23T16:52:53+02:00] view original

  That sounds more like a Karax-Svelte bridge kinda thing, instead of core js codegen stuff. (But I would instead just improve Karax itself).

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• xigoi (orginal) [2021-09-24T12:33:22+02:00] view original

  So then you should make a Svelte plugin or something that can recognize and compile <script type="nim">. It's not Nim's problem.

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• kamilchm (orginal) [2021-10-18T11:14:30+02:00] view original

  You can do the same with TypeScript, providing type definitions as JSDoc https://www.typescriptlang.org/docs/handbook/jsdoc-supported-types.html

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• juancarlospaco (orginal) [2021-10-18T19:12:34+02:00] view original

  Thats interesting, then would be nice to patch the JS codegen to emit those JS comments.

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• scobra (orginal) [2021-10-19T21:43:32+02:00] view original

  I have used nim and svelte together successfully by wrapping the immer library to handle reactivity. Unfortunately I have lost the code now but I used a macro or template to wrap the produce function quite nicely.

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