是否可以通过另一个对象的属性对对象数组进行排序？

如何解决是否可以通过另一个对象的属性对对象数组进行排序？

所以我有一个看起来像这样的对象数组：

    group: [
0: {id: "16",name: "P1",courseId: "6",mentorId: "1",chatUrl: false,students: {0: 1,1: 10,2: 11},…}
1: {id: "17",name: "C1",courseId: "7",mentorId: "3",students: {0: 15,1: 16,2: 18},…}
2: {id: "22",name: "P2",students: {0: 12,1: 13,2: 9},…}
3: {id: "23",name: "C2",students: {0: 17,1: 19,2: 20},…}
4: {id: "24",name: "DEV",courseId: "10",…}]. 

我正在尝试按指导者名称对其进行排序，指导者名称是另一个数组中对象的属性，如下所示：

mentor: [
0: {id: "0",firstName: "Daniel",about: false,…}
1: {id: "1",firstName: "Mark",aboutl:false,…}
2: {id: "3",firstName: "Eric",…}
3: {id: "6",firstName: "John",…} ]

组通过属性mentorId与指导者相关，因此我必须比较组数组中的属性mentorId与指导者数组中的ID，以获取组的所有指导者，然后按这些指导者firstName对组进行排序。这有可能吗？

输出应显示按指导者名字的字母顺序排列的所有组，如下所示：

group: [
0: {id: "23",…}
    1: {id: "17",…}
    2: {id: "22",…}
    3: {id: "16",…}
    4: {id: "24",…}
]

解决方法

您可以先按firstName属性对指导者数组进行排序，然后创建一个对象，其中键是id，值是该对象在已排序数组中的索引。然后，您可以在网上论坛数组上使用sort方法，并按订单对象中mentorId属性的值进行排序。

const groups = [{"id":"16","name":"P1","courseId":"6","mentorId":"1","chatUrl":false,"students":{"0":1,"1":10,"2":11}},{"id":"17","name":"C1","courseId":"7","mentorId":"3","students":{"0":15,"1":16,"2":18}},{"id":"22","name":"P2","students":{"0":12,"1":13,"2":9}},{"id":"23","name":"C2","students":{"0":17,"1":19,"2":20}},{"id":"24","name":"DEV","courseId":"10","chatUrl":false}]
const mentors = [{"id":"0","firstName":"Daniel","about":false},{"id":"1","firstName":"Mark","aboutl":false},{"id":"3","firstName":"Eric",{"id":"6","firstName":"John","about":false}]

mentors.sort((a,b) => a.firstName.localeCompare(b.firstName))
const order = mentors.reduce((r,{ id },i) => (r[id] = i,r),{})
groups.sort((a,b) => order[a.mentorId] - order[b.mentorId])
console.log(groups)

,

var group= [
     
     {id: "17",name: "C1",courseId: "7",mentorId: "3",chatUrl: false,students: {0: 15,1: 16,2: 18}},{id: "16",name: "P1",courseId: "6",mentorId: "1",students: {0: 1,1: 10,2: 11}},{id: "22",name: "P2",students: {0: 12,1: 13,2: 9}},{id: "23",name: "C2",students: {0: 17,1: 19,2: 20}},{id: "24",name: "DEV",courseId: "10",chatUrl: false}] 

var mentor=[
    {id: "0",firstName: "Daniel",about: false},{id: "1",firstName: "Mark",aboutl:false},{id: "3",firstName: "Eric",{id: "6",firstName: "John",about: false} 
]

group = group.sort( (a,b) => {
    for(i=0;i<mentor.length;i++){
        if (a.mentorId===mentor[i].id){a.mentorName=mentor[i].firstName}
        if (b.mentorId===mentor[i].id){b.mentorName=mentor[i].firstName}
        
    }
    if(a.mentorName<b.mentorName){return -1} 
    else if(a.mentorName==b.mentorName){return 0} 
    else{return 1}
});
console.log(group);