bluebird

Full featured Promises/A+ implementation with exceptionally good performance

v3.7.2 URL: https://unpkg.com/bluebird@3.7.2/js/browser/bluebird.js

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promise performance promises promises-a promises-aplus async await deferred deferreds future flow control dsl fluent interface

chai-as-promised

Extends Chai with assertions about promises.

v8.0.0 URL: https://unpkg.com/chai-as-promised@8.0.0/lib/chai-as-promised.js

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chai chai-plugin browser async testing assertions promises promises-aplus

promise-polyfill

Lightweight promise polyfill. A+ compliant

v8.3.0 URL: https://unpkg.com/promise-polyfill@8.3.0/dist/polyfill.min.js

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promise promise-polyfill ES6 promises-aplus

when

A lightweight Promises/A+ and when() implementation, plus other async goodies.

v3.7.8 URL: https://unpkg.com/when@3.7.8/when.js

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cujo Promises/A+promises-aplus promise promises deferred deferreds when async asynchronous ender

socket.io-as-promised

Socket.IO middleware for supporting returning promises from handlers

v4.0.0 URL: https://unpkg.com/socket.io-as-promised@4.0.0/index.js

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socket.io promises-aplus promises async middleware