我在组件中更改存储值后,我正在尝试访问它。 首先,我从列表中选择一组数字,然后在按下按钮后将其存储在商店中。当我尝试从商店访问价值时,它仍然是空的。
我的 Vue 组件:
<template>
<MultiSelect
class="groupselect"
v-model="localSelectedNumbers"
:options="options"
optionLabel="id"
placeholder="Wähle Geräte"
/>
<v-btn @click="refresh()">Click</v-btn>
<p>{{selectedNumbers}}</p>
</template>
<script>
import MultiSelect from "primevue/multiselect";
import {mapMutations, mapState} from "vuex";
export default {
name: "Gerateauswahl",
components: {MultiSelect},
computed: {
...mapState([
'mode',
'selectedNumbers',
'options'
])
},
data() {
return {
localSelectedNumbers: [],
show: []
}
},
watch: {
selectedNumbers(newValue, oldValue) {
this.show = newValue
}
},
methods: {
...mapMutations([
'setRows'
]),
refresh() {
this.setRows(JSON.parse(JSON.stringify(this.localSelectedNumbers)))
//console.log(this.selectedNumbers)
}
}
}
</script>
我的店铺:
import {createStore} from "vuex";
const store = createStore({
state() {
return {
options : [
{id:1}, {id:2}, {id:3}
],
rows: [],
mode: false,
selectedNumbers: []
}
},
mutations: {
setRows(state, payload) {
console.log(state.rows)
state.rows = payload
console.log(state.rows)
},
}
export default store;
我试过观察者,manuel refresh。 Store 中的 console.log 输出:(尝试使用数字 1 和 2)
<target>: Array [ {…}, {…} ]
0: Object { id: 1 }
1: Object { id: 2 }
length: 2
<prototype>: Array []
<handler>: Object { get: get(target, key, receiver), set: set(target, key, value, receiver), deleteProperty: deleteProperty(target, key), … }
但是 Vue 组件中的 selectedNumbers 变量以及从组件访问时的 this.$store.state.selectedNumbers 保持为空。