Promises and async control flow

12-month change compares the average of the last 4 weeks of downloads with the first 4 weeks of the 52-week series. Gzip size is for the whole package, as measured by Bundlephobia. "-" means the value has not been fetched.

• koa-better-error-handlerA better error-handler for Lad and Koa. Makes `ctx.throw` awesome (best used with koa-404-handler)
• qyuA general-purpose asynchronous job queue for Node.js
• zip-folder-promiseUse archiver to zip a folder using promises instead of callbacks
• is-symbolic-linkIndicates if path is symbolic link
• makepromiseMake a Promise from a function with a callback and preserve its error stack.
• promise-fn-retryA tiny, typed, isomorphic retry with exponential backoff, jitter and AbortSignal for failed promises
• @mintplex-labs/breeA fork of BreeJS/bree. A Node.js and JavaScript task scheduler with cron, dates, ms, later, and human-friendly support. Works in Node v12.17.0+, uses worker threads or process forks, and supports async/await, retries, throttling, concurrency, and cancela
• paramap-itParallel mapping for async iterators
• post-meUse web Workers and other Windows through a simple Promise API
• gulp-stream-to-promiseConvert gulp stream to promise.
• aurelia-storeAurelia single state store based on RxJS
• one-eventListen to one event via `addEventListener`, then resolve a Promise
• state-switchState Switch is a Change Monitor/Guarder for Async Actions.
• awaitingThe async/await utility for browsers and Node.js.
• async-iterator-to-pull-streamConvert a (async) iterator to a pull stream
• noice-json-rpcNoice Json RPC exposes a clean ES6 Proxy and Promise based interface for JSON-RPC2 Clients and Servers
• pull-stream-to-async-iteratorConvert a pull stream to an async iterator
• xaaasync/await/Promise helpers - delay, defer, timeout, each, map, filter
• squirrelingSquirreling Async SQL Engine
• ts-async-semaphoreA counting semaphore for node based on Java's Sempahore.
• @leapfrogtechnology/async-storeGlobal store utility for an async operation lifecycle and chain of callbacks
• @esm2cjs/form-data-encoderEncode FormData content into the multipart/form-data format. This is a fork of octet-stream/form-data-encoder, but with CommonJS support.
• aveazulBluebird drop-in replacement built on native Promise
• @esm2cjs/p-cancelableCreate a promise that can be canceled. This is a fork of sindresorhus/p-cancelable, but with CommonJS support.
• p-try-eachRuns promise-returning functions in series but stops whenever any of the functions were successful
• nextjsThe fastest async handler in node.js
• @jsdevtools/readdir-enhancedfs.readdir with sync, async, streaming, and async iterator APIs + filtering, recursion, absolute paths, etc.
• file-exists-promisefs.exists with ES6 Promise that is not deprecated
• p-oneTest whether some promise passes a testing function
• v-debounceInput debounce directive for Vue.js
• p-foreverRun promise-returning & async functions repeatedly until you end it
• qwestAjax library with XHR2, promises and request limit
• babel-plugin-fast-asyncfast-async/await transformer Babel plugin
• tangerineTangerine is the best Node.js drop-in replacement for dns.promises.Resolver using DNS over HTTPS ("DoH") via undici with built-in retries, timeouts, smart server rotation, AbortControllers, and caching support for multiple backends (with TTL and purge sup
• p-do-whilstCalls a function repeatedly while a condition returns true and then resolves the promise
• async-kitA simple and powerful async abstraction lib for easily writing Node.js code.
• @freik/p-limitRun multiple promise-returning & async functions with limited concurrency
• npm-utilsAsync NPM shell commands
• child-process-asyncThe best way to override Node's child_process module w/ Promises
• js-promisifyA simple utility to convert NodeJS async functions to native JS promises.
• es6-promisesES6 Promise polyfill
• requisitionES7 async/await ready http client
• @unthrown/prismaPrisma Client extension for unthrown: try-prefixed query methods returning AsyncResult, with per-operation tagged errors
• volleyball🏐 Tiny HTTP logger for Express showing asynchronous requests and responses
• rxjs-websocketsrxjs 7 websockets library
• async-map-likeES6 Map TypeScript Interface with Async Support
• nanodelayA tiny (25 bytes) Promise wrapper around setTimeout
• async-busboyPromise based multipart form parser
• nyksnodejs exupery style
• es6-promise-tryPromise.try shim for ES6 Promises

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