Function Demo

stories/createReducer.story.tsx:29–53

({ initialCount = 1 })

}

const Demo = ({ initialCount = 1 }) => {
  // Action creator to increment count, wait a second and then reset
  const addAndReset = React.useCallback(() => {
    return (dispatch2) => {
      dispatch2({ type: 'increment' });

      setTimeout(() => {
        dispatch2({ type: 'reset', payload: initialCount });
      }, 1000);
    };
  }, [initialCount]);

  const [state, dispatch] = useThunkReducer(reducer, initialCount, init);

  return (
    <div>
      <pre>{JSON.stringify(state, null, 2)}</pre>
      <button onClick={() => dispatch(addAndReset())}>Add and reset</button>
      <button onClick={() => dispatch({ type: 'reset', payload: initialCount })}>Reset</button>
      <button onClick={() => dispatch({ type: 'increment' })}>+</button>
      <button onClick={() => dispatch({ type: 'decrement' })}>-</button>
      <p>Open your developer console to see actions logged by middleware</p>
    </div>
  );
};

storiesOf('State/createReducer', module)
  .add('Docs', () => <ShowDocs md={require('../docs/createReducer.md')} />)