vue-expert-js

You can build Vue 3 apps with JavaScript and JSDoc types by using standard JavaScript files with JSDoc annotations like @typedef, @param, and @returns to achieve type safety for component props, emits, and composables without TypeScript complexity.

Yes, you can use the Vue 3 Composition API in a pure JavaScript project by loading contextual documentation and applying JSDoc type annotations to your JavaScript files, which provides full type coverage and maintainability for composables.

The best way to migrate from Vue 2 to Vue 3 without TypeScript is to use standard JavaScript with JSDoc annotations for component design and emits, allowing rapid prototyping and avoiding TypeScript setup overhead while maintaining type safety.

Vue 3 component testing works with JSDoc type annotations in JavaScript by loading contextual documentation for testing within the project, ensuring components designed with JSDoc-typed props and emits remain fully testable without a special build step.

You do not need a special build step to use JSDoc type annotations in a Vue 3 JavaScript project, as it requires only the standard Vue setup for JavaScript projects while enabling full type coverage through JSDoc tags like @param and @returns.

You document complex data structures in Vue 3 composables using plain JavaScript by applying JSDoc annotations such as @typedef, @param, and @returns, ensuring full type coverage and maintainability without adding TypeScript dependencies.