• pify - style function
• delay
• yoctodelay
• p-all - returning & async functions concurrently with optional limited concurrency
• p-event
• p-debounce - returning & async functions
• p-throttle - returning & async functions
• p-timeout
• p-retry - returning or async function
• p-any
• p-some
• p-mutex
• p-locate
• p-limit - returning & async functions with limited concurrency
• p-series - returning & async functions in series
• p-memoize - returning & async functions
• p-pipe - returning & async functions into a reusable pipeline
• p-props
• p-waterfall - returning & async functions in series, each passing its result to the next
• p-cancelable
• p-progress
• p-reflect
• p-filter
• p-reduce
• p-settle
• p-map-series
• p-each-series
• p-times - returning & async functions a specific number of times concurrently
• p-lazy
• p-whilst
• p-do-whilst
• p-forever - returning & async functions repeatedly until you end it
• p-wait-for
• p-min-delay
• p-try - Starts a promise chain
• p-race
• p-immediate - think `setImmediate()`
• p-time
• p-defer
• p-is-promise
• p-state
• p-queue
• make-synchronous

`.then`/`.catch`-based packages

• p-catch-if
• p-if
• p-tap
• p-log
• p-break

How can I run 100 async/promise-returning functions with only 5 running at once?

• `p-map` - they are eager. So by the time `p-map` starts reading the array, all the actions creating those promises have already started running. `p-map` works by executing a promise-returning function in a mapper function. This way the promises are created lazily and can be concurrency limited. Check out [`p-all`](https://github.com/sindresorhus/p-all) instead if you're using different functions to get each promise.