JavaScript First, Then TypeScript

1. Svelte

   1 719 83,327 9.9 JavaScript

   web development for the rest of us

   

   The Svelte team followed suit but motivated by the maintainer's developer experience as they migrated the project away from TypeScript in favor of plain JSDoc comments for type annotations instead.

2. SurveyJS

   surveyjs.io featured

   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.

   

3. turbo

   2 156 7,050 7.9 JavaScript

   The speed of a single-page web application without having to write any JavaScript (by hotwired)

   

   Most controversially, the Turbo framework dropped TypeScript support altogether after assessing that strong typing was the culprit behind poor developer experience.

4. JSDoc

   3 73 15,267 9.2 JavaScript

   An API documentation generator for JavaScript.

   

   The Svelte team followed suit but motivated by the maintainer's developer experience as they migrated the project away from TypeScript in favor of plain JSDoc comments for type annotations instead.

5. fresh

   4 136 13,167 9.3 TypeScript

   The next-gen web framework.

   

   The Fresh framework by Deno cited an improved developer experience due to tighter feedback loops.

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