I actually do prefer this too. And when using it for arrays, I'd prefer const r = [a, b, c] .map((e) => 2 * e*e) .filter((e) =

I actually do prefer this too. And when using it for arrays, I'd prefer const r = [a, b, c] .map((e) => 2 * e*e) .filter((e) => e >= 0) .reduce((acc, e) => acc + e) to the new piped version.