Clojurians Log v2
nbb 2024-11-16
I'm am building a script with nbb that will go up on npm. I'm following the example at https://github.com/babashka/nbb/tree/main/doc/publish and one thing I have run into is my .cljs script uses *command-line-args* but this is not available when I do loadFile from a .mjs script. Is this a bug or expected? I guess I should pass process.argv to my main function myself instead? Also, is there a way to export a function? Doing ^:export didn't seem to expose the function when I loaded the cljs with loadFile. 🤔
• command line args: perhaps a bug, feel free to post an issue • export: due to this being interpreted, export doesn't work. you can "export" stuff like you do it with scittle, just attach the function on the global object
about command line args: you could still just get the js/process.argv
Ok great, thank you. I assume that's js/globalThis in nbb. I'll experiment with it.
By the way I noticed this, not sure if it's a bug:
Welcome to nbb v1.3.195!
user=> js/globalThis
"RangeError: Maximum call stack size exceeded"That's not a bug, it's the same as when you print this in CLJS, it's a circularity issue because some things link back to the global object
Ah ha cool
Filed the command line args thing with a minimal repro: https://github.com/babashka/nbb/issues/372
Oh hi! I recently tried out nbb again and 👌
What I'm having an issue with today, and I've been stuck for a long long time, is to do multiple esm imports and get the default export... I don't know why someone would put data structures in ts (compiled to .js) 😭
Anyhow, I've been scratching around nbb.core code to find how that may be done, and I'm succeeding with "simple" imports. But what I'm struggling to get right, is to pair up multiple :key and file location items and "hydrate" the files.
I'm trying to do this:
[[:k1 "loc1"] [:k2 "loc2"] ,,,]
=> [[:k1 #js {}] [:k2 #js {}] ,,,]I need to add that I'm not well versed in promesa at all, and also spent a fair amount of time trying to understand how it works, so I do blame my ignorance for not succeeding 😅
yeah this won't work:
(p/map
(fn [[k v]] [k (js/import v)])That works! Thank you kindly, @borkdude
Interestingly, the p/map-version still locks up 🤔
The last one works with the suggested change.
bb is a JS promise, but running @bb won't work, js Promises aren't deref-able
I haven't read the docstring of p/map yet, but this was just a guess ;)
oh I guess p/map is indented to be called on one promise that returns a seq
anyway, you got it working I guess
Yes, I got it working for my needs, it's beautiful. Thanks again! I need to up-skill on promesa a bit more when I get the chance!