useReducer: Manage Complex State with Predictable Actions
Source: react.devbeginner
useReducer centralizes complex state logic. Instead of setting state directly, you "dispatch" actions describing what happened. It's ideal for state with many sub-values or when the next state depends on the previous one.
useReducer manages complex state with a centralized pattern. Instead of calling multiple state setters, you "dispatch" a single action describing a change. It excels over useState for state with many sub-values or when the next state depends on the previous one, making updates easier to debug. The biggest footgun is mutating state in the reducer; always return a new state object to trigger a re-render.
Read the original → react.dev
- #react
- #hooks
- #state management
- #reducer
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