javascript - 如何在不删除顶层的情况下将嵌套对象移动到顶层？

Question

假设我有这个数据:

data = [{
    "_id" : "2fApaxgiPx38kpDLA",
    "profile" : {
        "name" : "Karina 1",
        "avatar" : "avatar1.jpg",
        "bio" : "my bio 1"
},
{
    "_id" : "NXM6H4EWfeRAAhB7c",
    "profile" : {
        "name" : "Karina 2",
        "avatar" : "avatar2.jpg",
        "bio" : "my bio 2"
    },
}];

我做了 _.map(data, "profile") 但它删除了顶级 _id:

wrongResult = [{
    "name" : "Karina 1",
    "avatar" : "avatar1.jpg",
    "bio" : "my bio 1"
},
{
    "name" : "Karina 2",
    "avatar" : "avatar2.jpg",
    "bio" : "my bio 2"  
}];

如何在不移除顶层的情况下将嵌套对象移动到顶层:

expectedResult = [{
    "_id" : "2fApaxgiPx38kpDLA",
    "name" : "Karina 1",
    "avatar" : "avatar1.jpg",
    "bio" : "my bio 1"
},
{
    "_id" : "NXM6H4EWfeRAAhB7c",
    "name" : "Karina 2",
    "avatar" : "avatar2.jpg",
    "bio" : "my bio 2"  
}];

非常感谢......

Answer 1

像这样的？ (未测试)

_.map(data,function(d){
    d.profile._id = d._id;
    return d.profile;
});