bluebird

Full featured Promises/A+ implementation with exceptionally good performance

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

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

import-lazy

Import a module lazily

v4.0.0 URL: https://unpkg.com/import-lazy@4.0.0/index.js

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import require load module modules lazy lazily defer deferred proxy proxies

yaku

A lightweight promise library

v1.0.1 URL: https://unpkg.com/yaku@1.0.1/lib/yaku.js

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light-weight es6 promise performance promises promises-a promises-aplus async await deferred deferreds future flow control

@open-draft/deferred-promise

A Promise-compatible abstraction that defers resolving/rejecting promises to another closure.

v2.2.0 URL: https://unpkg.com/@open-draft/deferred-promise@2.2.0/build/index.mjs

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promise defer deferred resolve reject executor

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