mutations是要通过方法触发的，用于更改store里的数据的。
this.$store.commit("mutationsName")
例子：
store.js
import Vue from 'vue'
import Vuex from 'vuex'
Vue.use(Vuex)
export const store = new Vuex.Store({
state:{
prod :[
{name:"zs",age:12},
{name:"ls",age:13},
{name:"ww",age:14},
]
},
getters:{
getValue(state){
var item = state.prod.map(ele=>{
return {
name:ele.name+"__技术部",
age:ele.age+10
}
})
return item ;
}
},
mutations:{
getVal(state){
var items = state.prod.map(ele=>{
return {
age:ele.age+=4
}
})
return items;
}
}
})
Home.vue
<template>
<div>
<table>
<tr>
<td>姓名</td>
<td>年龄</td>
</tr>
<tr v-for="(item,i) in getValue">
<td>{{item.name}}</td>
<td>{{item.age}}</td>
</tr>
</table> <hr>
<table>
<tr>
<td>姓名</td>
<td>年龄</td>
</tr>
<tr v-for="(item,i) in getVal">
<td>{{item.name}}</td>
<td>{{item.age}}</td>
</tr>
</table> <button @click="getMutaions()">加4</button>
</div>
</template>
<script>
export default {
name: "Home",
data () {
return {
};
},
methods:{
getMutaions(){
this.$store.commit("getVal"); // 这里不用return的
}
},
computed:{
getValue(){
return this.$store.state.prod
},
getVal(){
return this.$store.getters.getValue
}
}
}
</script>
<style lang="css" scoped>
</style>