3 ms·

Then why not just use a fold?

• wlamartin 5y ago
  Sure, there's many ways to skin a cat. Given the option, I wouldn't choose either of these, and instead use something like filterMap[1] which I think conveys intent better than a fold or flatMap. Btw, I'm assuming that the original map questioner wasn't solely using flatMap for side-effectful iteration, which reading again, I'm a bit suspicious about. 1: https://gcanti.github.io/fp-ts/modules/Array.ts.html#filtermap https://gcanti.github.io/fp-ts/modules/Array.ts.html#filterm...