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问题
多个组件通信问题
EventBus 传值, 频繁会导致接口反复调用
我认为 eventBus 是专门解决兄弟组件之间通信的,然而实际上,eventBus 是专门解决同一个路由下的简单组件之间通信的。
如果波及夸路由的组件通信。能够思考利用 $route 对象传参或者 Vuex
vuex 完满解决
因为波及 v -model, 须要非凡解决:
bug
computed property “XXX” was assigned to but it has no setter
解决
component
computed: { | |
...mapGetters({nameFromStore: 'name'}), | |
name: {get(){return this.nameFromStore}, | |
set(newName){return newName} | |
} | |
} |
store
export const store = new Vuex.Store({ | |
state:{name : "Stackoverflow"}, | |
getters: {name: (state) => {return state.name;} | |
} | |
} |
我的解决
component 页面
<template> | |
<div v-model="common.checkStatus"> | |
123 | |
</div> | |
</template> | |
<script> | |
import {mapState} from "vuex" | |
export default { | |
//component 页面 computed 局部 | |
//computed | |
computed: { | |
...mapState({ | |
common:state => state.common, | |
checkStatus:state => state.common.checkStatus | |
}), | |
} | |
//component 页面 watch 局部 | |
//watch 实时监听 checkStatus | |
watch: {checkStatus(newVal){if(newVal){}else{} | |
} | |
} | |
} | |
</script> |
store 下的 common.js
const state = {checkStatus:false} | |
const getters = {} | |
const actions = {} | |
const mutations = {setCheckStatus(state,payload){state.checkStatus = payload} | |
} | |
export default { | |
state, | |
getters, | |
actions, | |
mutations | |
} |
其余 component 页面 实时监听 checkStatus
import {mapState} from "vuex" | |
export default { | |
computed: { | |
...mapState({checkStatus:state => state.common.checkStatus}), | |
}, | |
//watch 实时监听 checkStatus | |
watch: {checkStatus(newVal){if(newVal){}else{} | |
} | |
} | |
} |
其余 component 页面 更新 checkStatus
import {mapState} from "vuex" | |
export default { | |
methods:{clickOpen(){this.$store.commit("setCheckStatus",true) | |
}, | |
clickClose(){this.$store.commit("setCheckStatus",false) | |
} | |
} | |
} |
Vue EventBus 传值踩坑之 Vuex 完满解决
正文完
发表至: javascript
2020-09-15