输入属性的深度，和属性，输出属性的值

Question

有一个如下对象：
要求输入属性和这个属性的深度，输出这个属性对应的值
为什么不能直接输入 属性，因为可能会重名，上面JSON中最外层的Status和Result下的Status就是同名

findValue(key,depth)

{
    "Status":"200",
    "Message":"查询成功",
    "OrderNumber":null,
    "Result":{
        "Partners":[
            {
                "StockName":"xx",
                "StockType":"自然人股东",
                "StockPercent":"49.1900%",
                "ShouldCapi":"491.900000"
            }

        ],
        "Employees":[
            {
                "Name":"xx",
                "Job":"执行董事"
            },
            {
                "Name":"xx",
                "Job":"经理"
            }
        ],
        "Branches":[
            {
                "CompanyId":"8dc057af59e908b6a1c05d74de114134",
                "RegNo":"500902300083458",
                "Name":"北京小桔科技有限公司重庆分公司",
                "BelongOrg":"重庆市工商行政管理局南岸区分局经开区局",
                "CreditCode":null,
                "OperName":"xx"
            }
        ],
        "ChangeRecords":[
            {
                "ProjectName":"投资人",
                "BeforeContent":"自然人股东;",
                "AfterContent":"人股东;",
                "ChangeDate":"2017-07-21T00:00:00+08:00"
            }
        ],
        "ContactInfo":{
            "WebSite":[
                {
                    "Name":null,
                    "Url":"www.xiaojukeji.com"
                }
            ],
            "PhoneNumber":"010-83043726",
            "Email":"[e-mail]"
        },
        "Industry":{
            "Industry":"科学研究和技术服务业",
            "SubIndustry":"科技推广和应用服务业"
        },
        "KeyNo":"4659626b1e5e43f1bcad8c268753216e",
        "Name":"北京小桔科技有限公司",
        "No":"110108015068911",
        "BelongOrg":"海淀分局",
        "OperName":"程维",
        "StartDate":"2012-07-10T00:00:00+08:00",
        "EndDate":null,
        "Status":""
    }
}

比如

findval("Partners",2)输出

[{
    "StockName":"xx",
    "StockType":"自然人股东",
    "StockPercent":"49.1900%",
    "ShouldCapi":"491.900000"
    }
]

findVal("WebSite",3)输出

[{
    "Name":null,
    "Url":"www.xiaojukeji.com"
}],

findVal("WebSite",3)输出

Answer 1

下面函数用法 findVal("WebSite", 3, obj) 其中的obj为你查找的对象，返回的是一个数组，包含满足条件的所有值。

/**
*keyname: 属性名称
*layer: 定位在哪一层
*obj: 待查找对象
*cLayer: 当前所在层，使用者无需关心，递归用
*/
function findVal(keyname, layer, obj, cLayer) {
    var result = [];
    var currentLayer = cLayer || 1;
    var objType = typeof obj;
    if(currentLayer > layer 
        || objType === "string"
        || objType === "number" 
        || obj === null
        || obj === undefined) {
        return result;
    }

    for(var key in obj) {
        if(key == keyname && currentLayer == layer) {
            result.push(obj[key]);
        }
        var f = find(keyname, layer, obj[key], currentLayer + 1);
        if(f && f.length > 0) {
            result.push(...f);
        }
    }
    return result;
}