如何从对象内部存在的对象数组中获取值。(javaScript)

Question

我有一个像下面这样的对象，它包含一个数组对象，

{
  UserId: '634a336122b4b995d25869d5',      
  CategoryId: '620015b6f61454403daba1b4',
  specialUser: [{
        "startDate": "2022-10-3",
        "endDate": "2022-11-3",
        "priceType": 1,
        "price": 199
    },{
        "startDate": "2022-10-3",
        "endDate": "2022-11-3",
        "priceType": 1,
        "price": 199
    },{
        "startDate": "2022-10-3",
        "endDate": "2022-11-3",
        "priceType": 1,
        "price": 199
    }]
}

如何从specialUser (包括UserId和CategoryId )中获取值

谢谢你的帮助..。

Answer 1

data = {
  UserId: '634a336122b4b995d25869d5',      
  CategoryId: '620015b6f61454403daba1b4',
  specialUser: [{
        "startDate": "2022-10-3",
        "endDate": "2022-11-3",
        "priceType": 1,
        "price": 199
    },{
        "startDate": "2022-10-3",
        "endDate": "2022-11-3",
        "priceType": 1,
        "price": 199
    },{
        "startDate": "2022-10-3",
        "endDate": "2022-11-3",
        "priceType": 1,
        "price": 199
    }]
};

基本上，您可以使用map并将父属性包含到specialUser数组中。

data.specialUser.map((x)=> {
    x.UserId = data.UserId;
    x.CategoryId = data.CategoryId;
    
    return x;
});