What is the difference between useState and useReducer?

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In React, both useState and useReducer are hooks used to manage state in functional components, but they differ in complexity, structure, and use cases.

useState:

• Simpler and more intuitive for managing basic or small state values.

• Used when state changes are straightforward, like toggling a value or updating a form field.

• Returns a state value and a function to update it.

useReducer:

• Better suited for more complex state logic, especially when state updates depend on the previous state or involve multiple sub-values.

• Follows the Redux-style pattern with actions and a reducer function that determines how the state changes.

• Useful for managing state transitions, like in forms, complex UI components, or when the next state depends on multiple actions.

• Returns the current state and a dispatch function to send actions.

Summary:

• Use useState for simple state logic.

• Use useReducer when state logic is complex, involves many conditions, or needs better structure.

Both hooks are part of React’s powerful state management toolkit, and the choice depends on the complexity and structure of your component’s state.

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