Pinia là gì? Tại sao thay thế Vuex?

Pinia là official state management library cho Vue 3 — thay thế Vuex.

Ưu điểm:

1. Composition API-friendly, không cần mutations
2. TypeScript support tốt hơn nhiều
3. Không có nested modules, mỗi store là một module độc lập
4. Bundle nhỏ hơn (~1KB)
5. Devtools support, hot-reload
6. Server-side rendering support. Vuex 4 (dành cho Vue 3) hiện ở maintenance-only mode; Vuex 5 đã bị hủy — Pinia là official successor

Pinia is the official state management library for Vue 3 — replacing Vuex.

Advantages:

1. Composition API-friendly, no mutations needed
2. Significantly better TypeScript support
3. No nested modules — each store is an independent module
4. Smaller bundle (~1KB)
5. Devtools support, hot-reload
6. SSR support. Vuex 4 (for Vue 3) is in maintenance-only mode; Vuex 5 was cancelled — Pinia is the official successor