vue-expert-js

You can add JSDoc typing to Vue 3 components by generating `<script setup>` JavaScript files with `@typedef`, `@param`, and `@returns` annotations. This approach provides IDE type inference and documented public API contracts without needing TypeScript.

The best way to generate Vue 3 composables in plain JavaScript is using ES module (`.mjs`) structures paired with comprehensive JSDoc annotations. This ensures your exported functions have clearly defined type contracts validated by ESLint.

Yes, you can use Vitest to validate both the behavior and JSDoc annotation completeness of Vue 3 composables. Vitest coverage ensures your JavaScript modules function correctly while ESLint checks verify the type documentation.

Vue 3 Composition API migration does not require switching entirely to TypeScript. You can migrate using JavaScript with `<script setup>` and JSDoc annotations to achieve type-like documentation and safer public APIs for your components.

You enforce JSDoc coverage for public APIs in a Vue 3 JavaScript project by integrating ESLint JSDoc checks. This validates that `@typedef`, `@param`, and `@returns` annotations are correctly applied to your composables and components.

You should avoid TypeScript for Vue 3 UI feature development when you need fast prototyping that still requires documented public API contracts. Using JavaScript with JSDoc annotations provides type-like safety without the overhead of a TypeScript build process.