How to get the dispatch value in vue

In Vuex, use dispatch to trigger mutations to change state data. Use dispatch to store a value: this.$store.dispatch('setValue', 10); use getters to derive data from state: getters: { getValue: (state) => { return state.value; } }Use mapGetters in the component to access the getter: computed: { ...mapGetters({ value: 'getValu

Use dispatch in Vue to store the value and get

in In Vuex state management, the dispatch method is used to trigger mutations. These mutations can change the data stored in the Vuex state. To use

dispatch

to store a value, you can. Pass a value as a parameter to a mutation. For example: <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>this.$store.dispatch('setValue', 10);</pre><div class="contentsignin">Copy after login</div></div>In this example,

setValue

is a specified mutation that stores the value 10 in the Vuex state. ##To get the stored value, you can use getters. Getters are computed properties derived from Vuex state, which allow you to access and manipulate state data.

To create getters, you can use Vuex. Using the getters option in the module:

getters: {
  getValue: (state) => {
    return state.value;
  }
}

Then, you can use the mapGetters helper function in the component to access the getter:

computed: {
  ...mapGetters({
    value: 'getValue',
  }),
}

Now, you can Access the stored value using this.value

Full example:

// Vuex 模块
const module = {
  state: {
    value: null,
  },
  mutations: {
    setValue(state, value) {
      state.value = value;
    },
  },
  getters: {
    getValue: (state) => {
      return state.value;
    }
  }
};

// Vue 组件
export default {
  computed: {
    ...mapGetters({
      value: 'getValue',
    }),
  },
  methods: {
    setValue() {
      this.$store.dispatch('setValue', 10);
    },
  },
};

.

The above is the detailed content of How to get the dispatch value in vue. For more information, please follow other related articles on the PHP Chinese website!