useState vs useReducer: When to Use Each

useState is perfect for managing simple state values like strings, numbers, or booleans. useReducer shines when you have complex state logic involving multiple sub-values, or when the next state depends on the previous one. useReducer is also beneficial when you need to optimize performance for components that trigger deep updates, as you can pass dispatch down instead of callbacks. Think of useReducer as a mini Redux for component-level state management.