JavaScript，JSON，按名称引用

Question

How do you reference a JSON object in JavaScript?

I have a JSON response from a Rest web service and trying to reference the contents of the response which I have parsed to JSON by way JSON.Parse(response)

Sample JSON:

{  
   "HotelListResponse":{  
      "customerSessionId":"",
      "numberOfRoomsRequested":1,
      "moreResultsAvailable":true,
      "cacheKey":"",
      "cacheLocation":"",
      "cachedSupplierResponse":{  
         "@supplierCacheTolerance":"NOT_SUPPORTED",
         "@cachedTime":"0",
         "@supplierRequestNum":"101",
         "@supplierResponseNum":"",
         "@supplierResponseTime":"",
         "@candidatePreptime":"14",
         "@otherOverheadTime":"",
         "@tpidUsed":"",
         "@matchedCurrency":"true",
         "@matchedLocale":"true"
      },
      "HotelList":{  
         "@size":"20",
         "@activePropertyCount":"101",
         "HotelSummary":[  
            {  
               "name":"name1"
            },
            {  
               "name":"name2"
            }
         ]
      }
   }
}

How can I, for example reference the customerSessionId? And the second HotelSummary name?

For customerSessionId I have tried jsonObject.customerSessionId which returns undefined. For the second hotel summary name I have tried jsobObject.HotelList.HotelSummary[1].name which is undefined too.

Answer 1

Given the JSON string above parsed and assigned to a variable as such:

var response = JSON.Parse(jsonString);

you should be able to access it like this:

var customerSessionId = response.HotelListResponse.customerSessionId;

Answer 2

Here's the working solution fiddle

As you can see, you need to reference HotelListResponse , so if your var result holds your json object, then you can fetch the values by using

var first = result.HotelListResponse.customerSessionId
var second = result.HotelListResponse.HotelList.HotelSummary[1].name