vuex的結構是這樣的export default new Vuex.Store({ state:{
projects:[],
},
getters:{
getAllProjs(state){
return state.projects;
},
getProjectNamesById(state){
return state.projects.map( proj => proj.name )
}
},
mutations:{
pushProjectsToStore(state,data){ state.projects = data;
},
},
actions:{
pushProjectsToStore(){
}
}
})父組件創建時beforeCreate(){ this.$queryProject().then( res => this.$store.commit('pushProjectsToStore',res.data) )
},子組件實例化時mounted () { // 獲取項目信息
this.projects = this.$store.getters.getAllProjs; this.projectNamesById = this.$store.getters.getProjectNamesById;
},然后現在有個問題,getAllProjs執行時機是在pushProjectsToStore之前,所以拿不到數據,請問如何解決
2 回答

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TA貢獻1812條經驗 獲得超5個贊
computed: {
...mapGetters(["getAllProjs","getProjectNamesById"])
},
watch:{
getAllProjs(newVal,oldVal){ console.log('vuex 中上一次的值',oldVal); console.log('vuex 中更新后的值',newVal); }, getProjectNamesById(newVal,oldVal){ }
}
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