stefanpenner/es6-promise

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

7253 stars · 580 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A JavaScript polyfill that provides the ES6 Promise implementation for environments lacking native support, extracted as a subset of rsvp.js. It can be loaded via script tag, npm, or as an auto-polyfill that patches the global Promise when missing or broken.

Use cases

• support promises in older browsers like IE11
• polyfill Promise in legacy Node.js versions
• normalize broken native Promise implementations
• add async support to legacy JavaScript codebases
• provide a lightweight Promise implementation without full rsvp.js

When to choose

• you must support legacy browsers or runtimes without native Promise
• you want a small, battle-tested Promise polyfill
• you need automatic global patching of a missing or broken Promise

When to avoid

• you target only modern browsers and Node versions with native Promise support
• you need advanced features like cancellation or debugging tools (use rsvp.js instead)
• you are starting a new project where polyfills are unnecessary

Facets

library · maturity maintenance

concurrency developer-tools web-development frontend developer-tools browser cross-platform promises polyfill async es6 javascript nodejs

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