Promises and async control flow

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• pinkieItty bitty little widdle twinkie pinkie ES2015 Promise implementation
• regenerator-transformExplode async and generator functions into a state machine.
• call-me-maybeLet your JS API users either give you a callback or receive a promise
• p-deferCreate a deferred promise
• thingiesUseful TypeScript utilities.
• until-asyncGracefully handle a Promise using async/await.
• async-limiterasynchronous function queue with adjustable concurrency
• p-eventPromisify an event by waiting for it to be emitted
• async-listen`net.Server#listen()` helper that returns a Promise for async / await
• hard-rejectionMake unhandled promise rejections fail hard right away instead of the default silent fail
• avvioAsynchronous bootstrapping of Node applications
• async-mutexA mutex for guarding async workflows
• async-lockLock on asynchronous code
• @expo/spawn-asyncA Promise-based interface into processes created by child_process.spawn
• async-semaSemaphore using `async` and `await`
• stream-chainChain functions, generators, Node streams, and Web streams into a pipeline with backpressure support.
• p-is-promiseCheck if something is a promise
• async-eachNo-bullshit, ultra-simple, 35-lines-of-code async parallel forEach / map function for JavaScript.
• p-filterFilter promises concurrently
• @gar/promise-retryRetries a function that returns a promise, leveraging the power of the retry module.
• p-reduceReduce a list of values using promises into a promise for a value
• es6-promisifyConverts callback-based functions to ES6 Promises
• tmp-promiseThe tmp package with promises support and disposers.
• rsvpA lightweight library that provides tools for organizing asynchronous code
• p-each-seriesIterate over promises serially
• async-exit-hookRun some code when the process exits (supports async hooks and pm2 clustering)
• delayDelay a promise a specified amount of time
• eslint-plugin-promiseEnforce best practices for JavaScript promises
• currently-unhandledTrack the list of currently unhandled promise rejections.
• make-asynchronousMake a synchronous function asynchronous by running it in a worker
• make-cancellable-promiseMake any Promise cancellable.
• bfjBig-friendly JSON. Asynchronous streaming functions for large JSON data sets.
• loud-rejectionMake unhandled promise rejections fail loudly instead of the default silent fail
• request-promise-coreCore Promise support implementation for the simplified HTTP request client 'request'.
• tiny-async-poolRun multiple promise-returning & async functions with limited concurrency using native ES9
• writeWrite data to a file, replacing the file if it already exists and creating any intermediate directories if they don't already exist. Thin wrapper around node's native fs methods.
• p-throttleThrottle promise-returning & async functions
• promise-polyfillLightweight promise polyfill. A+ compliant
• into-streamConvert a string/promise/array/iterable/asynciterable/buffer/typedarray/arraybuffer/object into a stream
• promise-limitlimits calls to functions that return promises
• request-promise-nativeThe simplified HTTP request client 'request' with Promise support. Powered by native ES6 promises.
• promise-worker-transferableCommunicate with a Web Worker using Promises, allowing transferList
• @mrmlnc/readdir-enhancedfs.readdir with sync, async, and streaming APIs + filtering, recursion, absolute paths, etc.
• microAsynchronous HTTP microservices
• async-generator-functionA function that returns the normally hidden `AsyncGeneratorFunction` constructor
• spawndamnitTake care of your `spawn()`
• jstransformerNormalize the API of any jstransformer
• stream-to-promiseConvert streams (readable or writable) to promises
• node-ensureAsync module-loading library and protocol for bundlers/loaders targeting isomorphic apps and Node.js.
• promisepipePipe node.js streams safely with Promises

• node-fetch vs axios
• async vs neo-async
• emittery vs basic-ftp