(Blog) Build a Redux hooked app

foodReducer-redux.js

    case ACTIONS.LOAD_MENU: {
      const { menu } = action.payload;

      const menuById = {};
      menu.forEach((item) => {
        menuById[item.id] = item;
      });
      const allMenuId = menu.map((item) => item.id);
      const vegMenuId = menu
        .filter((item) => item.diet === "veg")
        .map((item) => item.id);

      return {
        ...state,
        menuById,
        menuIdList: {
          all: allMenuId,
          veg: vegMenuId,
        },
      };
    }