Questions
9 of 12
1What are actions in Redux Toolkit?
2How are action creators generated by createSlice()?
3What does a typical action object look like?
4How do you dispatch actions from a React component?
5What is the difference between dispatch(actionCreator(payload)) and dispatch({ type, payload })?
6How can you handle multiple actions in one reducer?
7What is the prepare callback in createSlice and how is it used?
8How do you test actions generated by a slice?
9How do you create custom actions not tied to a slice?
10Can you dispatch actions from other actions (chained dispatch)?
11What happens if you dispatch an undefined or invalid action type?
12How can you listen to any dispatched action globally?
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Basics
Slice
Actions
Reducers
RTK Query
Store
Thunk
Scenario Based
09 / 12

How do you create custom actions not tied to a slice?

In Redux Toolkit, you can create actions that are not directly associated with a slice by using the createAction utility. This is useful when actions are shared across multiple slices or handled only by extra reducers.

When to Use createAction
  1. 1

    When multiple slices need to respond to the same action.

  2. 2

    When you want a standalone action not tied to any slice logic.

  3. 3

    When using createReducer or extraReducers to handle shared updates.

Example: Defining and Using a Custom Action

Here, resetTodos is a standalone action that can be dispatched anywhere in the app. It’s not defined inside a slice but can still be handled by reducers or extraReducers as part of other slices.