vuex命名空間的使用

更新時間：2021年09月29日 09:21:17 作者：HappyCodingTop

本文主要介紹了vuex命名空間的使用，文中通過示例代碼介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們可以參考一下

export default {
  namespaced: true,
  // 局部狀態(tài)
  state: {
    name: "藍白英短",
    age: 1
  },
  // 局部讀取
  getters: {
    desc: state => "寵物：" + state.name
  },
  // 局部變化
  mutations: {
    increment(state, payload) {
      state.age += payload.num;
    }
  },
  // 局部動作
  actions: {
    grow(context, payload) {
      setTimeout(() => {
        context.commit("increment", payload);
      }, 1000);
    }
  }
};

dog.js

export default {
  namespaced: true,
  // 局部狀態(tài)
  state: {
    name: "拉布拉多",
    age: 1
  },
  // 局部讀取
  getters: {
    desc: state => "寵物：" + state.name
  },
  // 局部變化
  mutations: {
    increment(state, payload) {
      state.age += payload.num;
    }
  },
  // 局部動作
  actions: {
    grow(context, payload) {
      setTimeout(() => {
        context.commit("increment", payload);
      }, 1000);
    }
  }
};

hello.vue

<template>
  <div class="hello">
    <h3>Vuex狀態(tài)樹</h3>
    <div>{{this.$store.state}}</div>
    <h3>mapState</h3>
    <div>{{catName}} {{catAge}}</div>
    <div>{{dogName}} {{dogAge}}</div>
    <h3>mapGetters</h3>
    <div>{{catDesc}}</div>
    <div>{{dogDesc}}</div>
    <h3>mapMutations</h3>
    <button @click="catIncrement({num:1})">貓變化</button>
    <button @click="dogIncrement({num:1})">狗變化</button>
    <h3>mapActions</h3>
    <button @click="catGrow({num:1})">貓動作</button>
    <button @click="dogGrow({num:1})">狗動作</button>
  </div>
</template>

<script>
import { mapState, mapGetters, mapMutations, mapActions } from "vuex";

export default {
  name: "HelloWorld",
  computed: {
    ...mapState("cat", {
      catName: "name",
      catAge: "age"
    }),
    ...mapState("dog", {
      dogName: "name",
      dogAge: "age"
    }),
    ...mapGetters("cat", {
      catDesc: "desc"
    }),
    ...mapGetters("dog", {
      dogDesc: "desc"
    })
  },
  methods: {
    ...mapMutations("cat", { catIncrement: "increment" }),
    ...mapMutations("dog", { dogIncrement: "increment" }),
    ...mapActions("cat", { catGrow: "grow" }),
    ...mapActions("dog", { dogGrow: "grow" })
  }
};
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped lang="scss">
</style>

運行效果