What are redux action types and how do I use them?

What are redux action types and how do I use them?

Redux action types are constants that represent the type of action being performed in your application. They help in identifying what kind of state change is being requested.

Can you give me an example of how to define action types?

Sure! You can define action types as string constants. For example: const ADD_TODO = 'ADD_TODO'; This makes it easier to manage and avoid typos.

How do I use these action types in my reducers?

In your reducers, you can use a switch statement to handle different action types. For example:

function todosReducer(state = [], action) {
  switch (action.type) {
    case ADD_TODO:
      return [...state, action.payload];
    default:
      return state;
  }
}

What if I want to use multiple action types?

You can define multiple action types and handle them in the same reducer. Just add more cases in the switch statement for each action type.