Frontend Components

Reusable components require clear prop interfaces, local state handling, and composition patterns. Define props with TypeScript, manage component state internally or lift it up when shared, and use composition techniques like slots or render props to maximize flexibility across different parts of your application.

Lift state up when multiple sibling or parent components need to share data; keep state local when only that component uses it. Use props to pass data down and callbacks to pass events up, ensuring predictable data flow and avoiding unnecessary re-renders.

Document props, their types, default values, and usage examples alongside your component files. Use TypeScript interfaces to define prop shapes, include JSDoc comments, and provide quick-start examples showing common use cases like accepting user data or managing visibility state.

Slots (Vue) and render props (React) both enable flexible composition. Slots use template placeholders for simpler cases; render props pass a function as a prop for more dynamic control. Choose based on your framework and whether you need conditional rendering or scoped data.

Yes. Core principles like single responsibility, clear prop interfaces, local state management, and composition patterns apply across frameworks. Implementation differs—React uses render props, Vue uses slots, Svelte uses context—but the design philosophy remains consistent.

Define interfaces or types for all props, specifying required fields, optional fields with defaults, and union types for constrained values. This enables IDE autocomplete, catches errors at build time, and documents expected input formats for developers using your components.