我有一个数组的字典如下:
var usersTemp = {11: [ {"active": true, "email": "seconduser@example.com", "userid": 2, } ],
12: [ {"active": true, "email": "firstuser@example.com", "userid": 1, },
{"active": true, "email": "seconduser@example.com", "userid": 2, } ], }
我需要合并具有相同电子邮件地址或用户ID的元素,并获得类似的内容:
{ 1: {"active": true, "email": "firstuser@example.com", "roles": [12]} ,
2: {"active": true, "email": "seconduser@example.com", "roles": [11 , 12]}, }
这是我的尝试:
var mergedUsersTemp = {};
for (var role in usersTemp) {
for (var user in usersTemp[role]) {
if(!mergedUsersTemp[user]){
const i = JSON.parse(JSON.stringify(usersTemp[role][user]));
console.log(JSON.stringify(i))
mergedUsersTemp[user] = {"active": i["active"], "email": i["email"], "id": i["id"], "roles": []};
mergedUsersTemp[user]["roles"] = [];
}
mergedUsersTemp[user]["roles"].push(role);
}
}
但问题是在JavaScript中进行的深层复制,并且为用户信息返回相同的值。我该如何修复?
而不是 for...in
循环更容易使用Object.keys()
和forEach
环路。然后,您只需要首先检查userid
是否已经存在于对象中并设置其值或添加到角色并更改活动。
var usersTemp = {
11: [{
"active": true,
"email": "seconduser@example.com",
"userid": 2,
}],
12: [{
"active": true,
"email": "firstuser@example.com",
"userid": 1,
}, {
"active": true,
"email": "seconduser@example.com",
"userid": 2,
}],
}
var result = {}
Object.keys(usersTemp).forEach(function(i) {
usersTemp[i].forEach(function(j) {
if (!result[j.userid]) {
result[j.userid] = {
active: j.active,
email: j.email,
roles: []
}
}
result[j.userid].roles.push(i)
result[j.userid].active = j.active
})
})
console.log(result)