vuejs-typescript-best-practices

Use the Composition API with script setup style and define props with TypeScript interfaces. Keep each file focused on related content such as the component, subcomponents, helpers, and types, and prefer named exports for functions.

Use Pinia for state management in Vue 3 applications, as recommended by the Vue team. Combine it with functional, declarative TypeScript patterns and descriptive variable names like isLoading or hasError for readable store logic.

Prefer interfaces over type aliases because they are extendable and support declaration merging. Avoid enums and use maps instead for better type safety and flexibility in Vue components.

Wrap asynchronous components in Suspense with fallback UI, use dynamic imports for non-critical components, and configure code splitting in the Vite build for smaller chunks. Optimize images with WebP format, size attributes, and lazy loading.

Yes, Tailwind CSS works with Vue 3 Composition API components for utility-first styling. Apply a mobile-first responsive approach and combine it with Headless UI or Element Plus for accessible component primitives.

Avoid enums when you need flexible, type-safe constant collections, since maps provide better tree-shaking and type inference. Use plain object maps with const assertions instead for values like status codes or configuration keys.