const favorite = {
  state: {
    materials: [], // id列表
    titles: [] // 标题列表
  },
  mutations: {
    updateFavoriteItemStore(state, { field, value }) {
      state[field] = value;
    },
    addFavoriteItemStore(state, { field, value }) {
      state[field].push(value);
    },
    deleteFavoriteItemStore(state, { field, value }) {
      if (state[field].length > 0) {
        let index = state[field].indexOf(value);
        state[field].splice(index, 1);
      }
    }
  },
  actions: {}
};

export default favorite;