react useReducer

react useReducer

// change can be a function or an object
const reduderFn = (state, change) => ({
   ...state,
   ...(typeof change === 'function' ? change(state): action),
});

const Counter = ({step}) => {
  const [count, setCount] = React.useReducer(reducerFn, 0);
  
  const handleIncrement = () => {
     return setCount(curState => ({count: currentState + step}));
  };

  // Jsx stuff
}