vue

The Vue 3 Composition API builds reactive UI components using core primitives like ref, reactive, computed, and watch to synchronize state with the interface. It leverages script setup to reduce boilerplate while maintaining type-safe patterns.

Managing state across multiple Vue components is best handled using provide and inject patterns for dependency injection, or by extracting shared reactive logic into composables. This approach ensures modular state sharing without prop drilling.

To scaffold a Vue project using script setup, you install and initialize a Vue project with the Composition API workflow. You then create a component using the script setup block to define reactive state and see live updates immediately.

Vue 3 works seamlessly with TypeScript to enforce type-safe component patterns. The Composition API and script setup block provide ergonomic typing benefits that reduce boilerplate while ensuring strict type checking across props, emits, and reactive state.

You should use provide and inject in Vue for multi-component state sharing across deeply nested component trees, avoiding cumbersome prop drilling. Use props and emits for direct parent-child communication to maintain stricter component encapsulation.