How flatten object literal properties?

Question

I have an object being returned by a legacy server and I want to change the structure on the client-side via JavaScript, jQuery, or even Underscore.js.

Below is what my original object looks like:

[
   {
      "Id":{
         "LValue":1,
         "Value":1
      },
      "Date":{
         "LValue":"2013-10-17T00:00:00",
         "Value":"2013-10-24T00:00:00"
      },
      "User":{
         "LValue":508,
         "Value":507
      },
      "Comments":{
         "LValue":"This a test load",
         "Value":"This a test"
      },
      "Name":"John Doe",
      "IsDeleted":false
   }
]

On the client-side though, I would like to flatten it to get the "Values" and stuff the "LValues" into a separate property so I don't loose them if I need it later:

[
   {
      "Id":1,
      "Date":"2013-10-24T00:00:00",
      "User":507,
      "Comments":"This a test",
      "Name":"John Doe",
      "IsDeleted":false,
      "LValues": {
          "Id":1,
          "Date":"2013-10-17T00:00:00",
          "User":508,
          "Comments":"This a test load"
       }
   }
]

this would make working with the object so much easier and any help would be deeply appreciated!

Answer 1

var oList = [
   {
      "Id":{
         "LValue":1,
         "Value":1
      },
      "Date":{
         "LValue":"2013-10-17T00:00:00",
         "Value":"2013-10-24T00:00:00"
      },
      "User":{
         "LValue":508,
         "Value":507
      },
      "Comments":{
         "LValue":"This a test load",
         "Value":"This a test"
      },
      "Name":"John Doe",
      "IsDeleted":false
   }
];

var newFormat = _(oList).map(function(o) {
  var flattened = { LValues: {} };
  _(o).each(function(val, propName) {
      flattened[propName] = val.Value ? val.Value : val;
      if(val.LValue) {
          flattened.LValues[propName] = val.LValue;
      }
  });
  return flattened;
}