修改vuex中的值方法總結

在store文件夾下建立index.js

import Vue from "vue";
import Vuex from "vuex";
import VuexPersistence from "vuex-persist";

Vue.use(Vuex);

const vuexLocal = new VuexPersistence({
  storage: window.localStorage,
});

export default new Vuex.Store({
  state: {
    count:20
  },
  mutations: {
    updateCount(){
      this.state.count=this.state.count+1;
    },
    updateCounttwo(state,val){
      this.state.count=this.state.count+val;
    }
  },
  actions:{
    updateCountActions(){
      setTimeout(()=>{this.state.count=this.state.count+2; },1000)
    },
    updateCountActions({ commit},data){
      commit("updateCounttwo", data);
    }
  },
  plugins: [vuexLocal.plugin],
});

在vue中調用方法修改參數

import { mapActions, mapState } from "vuex";
export default {
    name:"RetrievalHeader",
    methods:{
      ...mapActions(["updateCountActions"]),
      submit2(){
        this.$store.commit('updateCount');//方法一
        this.$store.dispatch("updateCountActions")//方法二
        this.updateCountActions(5);//方法三
      }
    },
}
</script>