[edwinjm]

If your only examples are leftPad and isNumber, I can’t take this article seriously. There are so many really useful micro libraries.

[jrpelkonen]

There are plenty of other one-liners: is-odd, is-promise, etc.

[hinkley]

p-limit

[Sammi]

P-limit is amazing. So good it kinda is a proof that most libs aren't as good as it.