State Management Patterns in Vue 3

Pinia vs Composables

Vue 3 offers multiple state management approaches. Pinia is the official store, but simple composables with ref and provide/inject work well for smaller apps.

When to Use Pinia

Choose Pinia when you need devtools integration, SSR support, or shared state across deeply nested components. For local component state, composables are lighter.

Reactive Patterns

Use computed for derived state, watch for side effects, and readonly to prevent accidental mutations from child components.