Promises and async control flow

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• native-or-anotherGuaranteed way for getting a Promise. Always native Promise if available, otherwise looks for common promise libraries and loads which is installed. Allows registering custom Promise implementation in node < 0.12 versions
• vue-concurrencyA library for encapsulating asynchronous operations and managing concurrency for Vue + Composition API
• wrap-promiseLike new Promise(), but prevents implicit rejection
• async-reduce`reduce` function for async reductions on arrays.
• async-event-emitter2Just like EventEmitter, but with support for callbacks and interruption of the listener-chain
• nedb-promisesA dead-simple promise wrapper for nedb.
• fs-extra-promiseNode file system library and fs-extra module promisified with bluebird
• twinopDerive parallel sync + async APIs from one shared generator body.
• promises-allTrack down promise states of all promise functions executing in parallel. Similar to promise.all function, but it rejects the complete promise.all() even if any one of the promise fails, where as promises-all npm will indiviudally return you the states.
• @n8n/p-retryRetry a promise-returning or async function
• p-min-delayDelay a promise a minimum amount of time
• @prelude/channelGo-style channels for async code: buffered or unbuffered, async-iterable, with select over reads and writes.
• @iplab/ngx-file-uploadAngular file upload components with support for native file selection, drag and drop, Angular forms, validation, custom templates and CSS custom property theming.
• axios-https-proxy-fixPromise based HTTP client for the browser and node.js
• p-whilstWhile a condition returns true, calls a function repeatedly, and then resolves the promise
• @remix-run/async-context-middlewareMiddleware for storing request context in AsyncLocalStorage
• blue-tapeTape test runner with promise support
• await-spawn> `child_process.spawn()` wrapped in a `Promise` for doing async/await.
• promise-status-asyncPromise status management tool
• axios-jsonp-proPromise based HTTP client for the browser and node.js
• yargs-promiseUse the headless yargs parser with promises
• redux-logicRedux middleware for organizing all your business logic. Intercept actions and perform async processing.
• await-onreally simple error handling with await/async
• async-lz-stringLZ-based compression algorithm
• cfn-response-promisewrap cfn-response in promise to support await/async style lambda in cloudformation custom resource
• async-cleanupAsynchronous process cleanup for Node.js and Typescript
• superagent-throttleA plugin for superagent that throttles requests.
• move-onCreates a queue of sync or async functions with resolve and reject callback.
• concurrentPromises/A+ with Scala awesomeness
• concurrifyTurn non-concurrent FantasyLand Applicatives concurrent
• miniqYet another tiny async control flow library, implements parallelLimit, with the ability to share the concurrency-limited queue.
• @henrygd/semaphoreFast inline semaphores and mutexes
• @endo/streamFoundation for async iterators as streams
• async-parallelAsync enabled each(), map(), filter() functions that work just like their standard counterparts, but can be used with async/await and also provide concurrency limiting. Includes built-in typings and JSDoc comments for IntelliSense documentation.
• make-synchronousMake an asynchronous function synchronous
• @ronomon/queueProcess thousands of asynchronous or synchronous jobs, concurrently or sequentially, safely and efficiently, without creating thousands of closures.
• gatsby-omni-font-loaderFont loader optimized for maximum performance. Removes render-blocking font resources and loads them asynchronusly. Handle FOUT & FOUC with font loading status watcher. Supports both local-hosted fonts and web fonts.
• p-stateInspect the state of a promise
• await-sleepBlocking sleep/delay with async/await
• p-async-cacheCache the promise lookups and avoid fetching the same thing more than necessary
• cancellationtokenA composable token for cancelling asynchronous operations.
• pending-queuepending-queue ensures a certain asynchronous method only run once, and queues listeners which are registered to it.
• callbackifybackwards compatibilify your callback functions while migrating apis to promises
• pinkyswearMinimalistic Promises/A+ implementation, <500 bytes
• easEmbedded Async Simple Javascript templating
• cron-asyncExecute something on a schedule, using cron syntax, with async/await support.
• promise-extendedPromises implementation with chainable API
• async-await-parallelConcurrency control for awaiting an array of async results
• type-async-valuetype AsyncValue<T> = Promise<T> | T
• axios-proxy-fixPromise based HTTP client for the browser and node.js

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