function: `spreadArgs` (maybe not the best name)

[2chanhaeng]

Suggestion

Yeah, I don't think the name is good too 🤣. If you want to add this function to the library, please suggest a better name.

⭐ Suggestion

const fn = (a: A, b: B, ...) => ...
spreadArgs(fn)([a as A, b as B, ...])

Implement

const spreadArgs = <F extends Arrow>(fn: F):
(args: Parameters<typeof fn> | readonly [...Parameters<typeof fn>]) =>
ReturnType<typeof fn> =>
(args) => fn(...args);

💻 Use Cases

It's useful with map:

import { writeFile } from "node:fs/promises";

const contentByPath = {
  "a.txt": "Hello, world",
  "b.json", "{ \"hello\": \"world\" }"
}

await pipe(
  contentByPath,
  entries,
  map(spreadArgs(writeFile)),
  toAsync,
)

[ppeeou]

https://fxts.dev/docs/apply

Thank you for your interest. A function with the same functionality already exists :)

[2chanhaeng]

Oh, I missed that!
And then, would you consider to fix T extends Parameters<F> | readonly [...Parameters<typeof fn>] at the apply function?