英文:
How to get unique array of objects filtering by object key Vuex?
问题
以下是已翻译的内容：
"我期望获得一个新的对象数组，其中的 key 值 trip_class 不重复。但我得到的仍然是 30 个对象项，而不是一个或两个。使用 Vuex 的计算属性从初始的对象数组中获取。"
从这个：
[{name: 'john', trip_class: 0, lastname: 'lastname'},{name: 'Don', trip_class: 1, lastname: 'lastname'},{name: 'Joshua', trip_class: 1, lastname: 'lastname'},{name: 'Mary', trip_class: 2, lastname: 'lastname'}]
我想要获得这个：
[{name: 'john', trip_class: 0, lastname: 'lastname'},{name: 'Don', trip_class: 1, lastname: 'lastname'},{name: 'Mary', trip_class: 2, lastname: 'lastname'}]
computed: {flights() {return this.$store.getters.getFlights;},flightsClasses() {console.log(this.flights) // 返回一个对象数组let flightsClasses = this.flightsflightsClasses.reduce((acc, obj) => {var exist = acc.find((flightClass) => obj.trip_class === flightClass );if(!exist){acc.push(obj);}return acc;},[]);console.log('flightsClasses', flightsClasses) // 返回重复项的数组return flightsClasses},}
英文:
I'm expecting to obtain a new array of ojects with a none repeatable key value trip_class. But I'm getting still 30 object items instead of a single one or two. Using computed initial array of objects Vuex.
From this :
[{name: 'john', trip_class: 0, lastname: 'lastname'},{name: 'Don', trip_class: 1, lastname: 'lastname'},{name: 'Joshua', trip_class: 1, lastname: 'lastname'},{name: 'Mary', trip_class: 2, lastname: 'lastname'}]
I'd like to obtain this :
[{name: 'john', trip_class: 0, lastname: 'lastname'},{name: 'Don', trip_class: 1, lastname: 'lastname'},{name: 'Mary', trip_class: 2, lastname: 'lastname'}]
<!-->
computed: {flights() {return this.$store.getters.getFlights;},flightsClasses() {console.log(this.flights) // returns an array of objectslet flightsClasses = this.flightsflightsClasses.reduce((acc, obj)=>{var exist = acc.find((flightClass) => obj.trip_class === flightClass );if(!exist){acc.push(obj);}return acc;},[]);console.log('flightsClasses',flightsClasses) // returns repeatable items arrayreturn flightsClasses},
答案1
得分: 0
这能解决吗？
acc.find((flightClass) => obj.trip_class === flightClass.trip_class );
英文:
Does this fix it?
acc.find((flightClass) => obj.trip_class === flightClass.trip_class );
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