About the path syntax of this JSON

What would be the syntax path to thumbnails.data? also, could such an output be simplified, to just {}'s, rather than []'s and {}'s?

{
   "returnValue":true,
   "results":[
      {
         "_id":"++HUS_WBo9OoOpWA",
         "_kind":"com.palm.media.audio.file:1",
         "_rev":3357,
         "album":"Elements of Love: Ballads",
         "albumArtist":"Earth, Wind & Fire",
         "artist":"Earth, Wind & Fire",
         "bookmark":0,
         "createdTime":0,
         "disc":{
            "position":1,
            "total":1
         },
         "duration":0,
         "genre":"Rhythm & Blues",
         "isRingtone":false,
         "modifiedTime":1300682209,
         "path":"/media/internal/Track 03 - Devotion.mp3",
         "searchKey":"Earth, Wind & Fire Elements of Love: Ballads Devotion",
         "size":6976284,
         "sortKey":{
            "trackAndDisc":100003
         },
         "thumbnails":[
            {
               "_id":"d1e",
               "data":"/media/internal/Track 03 - Devotion.mp3:216:5998",
               "type":"embedded"
            }
         ],
         "title":"De开发者_如何学编程votion",
         "track":{
            "position":3,
            "total":0
         }
      }
   ]
}

Thanks

If myData holds the data structure in question, you would use

myData.results[0].thumbnails[0].data

As for simplification of your output, yes, it certainly could be simplified, but we'd have to see the code which generates that to tell you how to accomplish it.

1. How do I get to the thumbnails data?

   Assuming your JSON object is stored in the variable myData:

   myData.results[0].thumbnails[0].data
   

   Note that this is for the specific example you posted and will always return the first thumbnails data for the first result. In actual code, you will probably loop over both the arrays (results and thumbnails) to extract all the thumbnails data for all the results objects.

2. Can this JSON object be simplified?

   It most certainly could be - it depends on what the purpose is and how it's being generated. If it's being returned by a webservice that you have no control over, then no, you can't change it, obviously. If you're generating it, then sure, you define the object and it's meaning. For example, you could restrict the number of thumbnails to just 1 always, and so, instead of having an array of thumbnails, you'd have just a thumbnail object.

   However, as I see it right now, it makes a lot sense - your results could include 1 or more items, hence an array; there could more than 1 thumbnail images and so an array is used there as well...

Are you planning to have more than one thumbnail per result? If not, you can just have:

"thumbnails":{
               "_id":"d1e",
               "data":"/media/internal/Track 03 - Devotion.mp3:216:5998",
               "type":"embedded"
            },

and access it as: results[i].thumbnails.data