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Valtio Proxy State

⭐ Tier 1
Category
Tech
Salary Impact
Complexity
Easy
Used in
All careers

Valtio is a state management library that uses JavaScript Proxy objects to make state mutations feel natural. Instead of Redux-style actions or Zustand-style setters, you mutate state directly: state.count += 1. Valtio's Proxy intercepts mutations, batches updates, and notifies subscribers (React components re-render). It's minimal (2KB), supports React/Vue, works with TypeScript, and feels more intuitive than immutable state management.