using-reducers

What problem does it solve?

Teaches useReducer for complex state logic in React 19. Use when state updates depend on previous state, multiple related state values, or complex update logic.

Core Features & Use Cases

• Structured state management: central reducer to orchestrate state transitions.
• Predictable updates: rely on dispatched actions rather than scattered setState calls.
• Use case: manage a multi-field form with dependent fields and a reset action.

Quick Start

Run sample counter with a reducer to handle increment, decrement, and reset. Refer to the code snippet in the Skill body for a complete example.