15 lines
459 B
TypeScript
15 lines
459 B
TypeScript
const reducer = (state: State, action: CounterAction) => {
|
|
switch (action.type) {
|
|
case CounterActionTypes.INCREMENT:
|
|
return { ...state, count: state.count + 1 };
|
|
case CounterActionTypes.DECREMENT:
|
|
return { ...state, count: state.count - 1 };
|
|
case CounterActionTypes.RESET:
|
|
return { ...state, count: 0 };
|
|
case CounterActionTypes.SET:
|
|
return { ...state, count: action.payload };
|
|
default:
|
|
return state;
|
|
}
|
|
};
|