call-me-maybe
Let your JS API users either give you a callback or receive a promise
cbify
Wraps synchronous functions with a callback-style API
selectn
Curried property accessor function that resolves deeply-nested object properties via dot/bracket-notation string path while mitigating TypeErrors via friendly and composable API.
universalify
Make a callback- or promise-based function support both promises and callbacks.
pify
Promisify a callback-style function