在javascript中獲取root json元素

Question

這是我的json ...使用javascript ..我想在這種情況下只輸出根的名稱服務然后遍歷數組中的各個元素

{
    services: {
        46: {
            servicetypeid: "27",
            serviceid: "51",
            servicename: "Parking",
            description: "Parking Related Payments",
            optioncode: [],
            inputid: [],
            price: [],
            categoryidentifier: []
        },
        47: {
            servicetypeid: "27",
            serviceid: "52",
            servicename: "Markets",
            description: "Markets Related Payments",
            optioncode: [],
            inputid: [],
            price: [],
            categoryidentifier: []
        },
        48: {
            servicetypeid: "27",
            serviceid: "53",
            servicename: "PSV",
            description: "Public Service Vehicles",
            optioncode: [],
            inputid: [],
            price: [],
            categoryidentifier: []
        }
    }
}

Answer 1

這不是JSON格式數據，您可以循環訪問對象：要獲取根密鑰，您可以執行以下操作：

var rootKey;
for(var prop in tst) {
 console.log( prop ); //will give "services"
 rootKey = prop;
}

並循環通過所有項目：

for( var key in tst[rootKey] ) {
  for( var key1 in tst[rootKey][key] ) {
    console.log( "key:" + key1 + " --- Value:"+ tst[rootKey][key][key1] );
 }
}