What is the difference between reducers and extraReducers in a slice?

In Redux Toolkit, both reducers and extraReducers define how the slice state changes in response to actions, but they are used in different contexts.

Key Differences

reducers handle actions defined within the same slice. These actions are automatically generated by Redux Toolkit.
extraReducers handle actions from outside the slice, such as async thunks or actions from other slices.
reducers use a simple object syntax, while extraReducers often use a builder callback for better type safety and flexibility.

Example: reducers vs extraReducers

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What is the difference between reducers and extraReducers in a slice?

In Redux Toolkit, both reducers and extraReducers define how the slice state changes in response to actions, but they are used in different contexts.

Key Differences

reducers handle actions defined within the same slice. These actions are automatically generated by Redux Toolkit.
extraReducers handle actions from outside the slice, such as async thunks or actions from other slices.
reducers use a simple object syntax, while extraReducers often use a builder callback for better type safety and flexibility.

Example: reducers vs extraReducers