How to compile Deno modules to Node.js modules?

[KSXGitHub]

I have tried various bundlers (parcel, webpack, rollup, @pika/pack), they all share the same limitation: They do not recognise remote module URLs.

[ondras]

What about https://github.com/rollup/plugins/tree/master/packages/url ?

[KSXGitHub]

@ondras

hat about https://github.com/rollup/plugins/tree/master/packages/url ?

I had read about it before. Its function is not to convert remote URLs to es modules, but to allow importing non-JavaScript assets. I need something that converts remote modules (such as https://deno.land/std/flags/mod.ts) to something that Node.js can use.

[ondras]

I see.

And what particular behavior are you looking for? Do you want your remote dependencies downloaded+cached+bundled, or resolved at runtime (i.e. replacing import "http..." statements with something like requireRemote("http...") ?

[KSXGitHub]

@ondras I want to download and resolve at compile time. I only want to create one file (bundle).

[nayeemrmn]

What's wrong with deno bundle? It'll work with any Deno module including those written to be Node compatible, right?

[KSXGitHub]

@nayeemrmn I tried again with deno bundle, it didn't work initially due to Node.js (v13.12.0) does not support optional chaining syntax (line 12 of the bundle). Then I tried harder by using babel, it works now. It would be nicer if I can define tsconfig from the command line, is there an issue about this already?

[KSXGitHub]

@nayeemrmn Another thing, how to create *.d.ts files from Deno TypeScript files?

[kitsonk]

@KSXGitHub Deno.bundle() would give you the same output as deno bundle and allows you to pass options that would target es2020 or es2019. The problem is you would have to write out the output yourself.

As far as types, see #3385. I've tried to do it recently. It is complicated because of the way the TypeScript compiler generates the declaration files for bundles means effectively it doesn't work. I need to basically handcraft a bundle .d.ts based on each module and then output it.