luispuig/use-reducer-with-redux-toolkit

const slice = createSlice({
  name: "counter",
  initialState: 0,
  reducers: {
    increment: (state, action: PayloadAction<number | undefined>) =>
      state + (action.payload ?? 1),
    decrement: (state, action: PayloadAction<number | undefined>) =>
      state - (action.payload ?? 1),
  },
});

function App() {
  const [state, actions] = useReducerFromReduxToolKit(slice);

  return (
    <div className="App">
      <header className="App-header">
        <p>{state}</p>
        <button onClick={() => actions.increment(1)}>Increment 1</button>
        <button onClick={() => actions.increment(3)}>Increment 3</button>
        <button onClick={() => actions.decrement(1)}>Decrement 1</button>
        <button onClick={() => actions.decrement(3)}>Decrement 3</button>
      </header>
    </div>
  );
}