text: import { SET_ALERT, REMOVE_ALERT } from '../actions/types';
  
  const initialState = [];
  
  export default function (state = initialState, action) {
    const { type, payload } = action;
  
    switch (type) {
      case SET_ALERT:
        return [...state, payload];
  
      case REMOVE_ALERT:
        return state.filter((alert) => alert.id !== payload);
      default:
        return state;
    }
  }
  