import { createStore } from 'vuex'
export default createStore({
  state: { name: 'dell' },
  mutations: {
    changeName(state, str) {
      state.name = str;
    }
  },
  actions: {
    getData(store) {
      setTimeout(() => {
        store.commit('changeName', 'hello')
      }, 2000)
    }
  }
})

<template>
  <div class="home">
    <img alt="Vue logo" src="../assets/logo.png">
    <h1>{{name}}</h1>
  </div>
</template>

<script>
import { toRefs } from 'vue';
import { useStore } from 'vuex';
export default {
  name: 'Home',
  setup() {
    const store = useStore();
    const { name } = toRefs(store.state);
    return { name }
  }
}
</script>

<template>
  <div class="about">
    <h1 @click="handleClick">This is an about page</h1>
    <h1>{{name}}</h1>
  </div>
</template>

<script>
import { toRefs } from 'vue';
import { useStore } from 'vuex';
export default {
  name: 'Home',
  setup() {
    const store = useStore();
    const { name } = toRefs(store.state);
    const handleClick = () => {
      store.dispatch('getData')
    }
    return { name, handleClick }
  }
}
</script>·