Promisify a callback-style function
Higher-order functions and common patterns for asynchronous code
pipe streams together and close all of them if one of them closes
Make a callback- or promise-based function support both promises and callbacks.
Call a callback when a readable/writable/duplex stream has completed or failed.
Compare items in two sequences to find a longest common subsequence
Run an array of functions in parallel
Let your JS API users either give you a callback or receive a promise
Throw a given error
Watch globs and execute a function upon change, with intelligent defaults for debouncing and queueing.
Run an array of functions in series
Read all stream content and pass it to callback
Wait for multiple callback
Run an array of functions in parallel, but limit the number of tasks executing at the same time
Library to help write libraries that accept both promises and callbacks.
Promisify a function call so users can call a function with a callback or get a promise
Extract the options and callback from a function's arguments easily
A pipeable stream that calls your callback
Bundle results of async functions calls into one callback with all the results
Tiny, dependency free promisify library.