[AskJS] Best practices for polyfills in libraries?

This page summarizes the projects mentioned and recommended in the original post on /r/javascript

SurveyJS - JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor
Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.
surveyjs.io
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Stream - Scalable APIs for Chat, Feeds, Moderation, & Video.
Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
getstream.io
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  1. Mithril.js

    A JavaScript Framework for Building Brilliant Applications

    Disclaimer: I'm an author of a framework with a decent number of github stars.

  2. SurveyJS

    JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.

    SurveyJS logo
  3. fusionjs

    Modern framework for fast, powerful React apps

    I also worked on another framework which does ship with polyfills, but this one is very much a "we-call-you" framework, in the sense that it has an full-fledged, opinionated compiler with hundreds of hours worth of time spent on optimizations, and the inclusion of polyfills is also very much a deliberate choice made in the name of productivity.

  4. eslint-plugin-compat

    Check the browser compatibility of your code

    For now I'm trying to set up [eslint-plugin-compat](https://github.com/amilajack/eslint-plugin-compat) to check it for me, but I'm not sure it works — get 0 errors and 3 polyfills for a test snippet.

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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