Prevent empty object elements in array

[poostwoud]

Hi,

Given the following input:

{
  "PropA": "a",
  "PropB": "b",
  "PropC": "c",
  //"PropD": "d",
  "PropE": "e"
}

And transformation:

{
  "PropA": "#valueof($.PropA)",
  "PropB": "#valueof($.PropB)",
  "Props": [
    {
      "#ifgroup(#exists($.PropC))": {
        "Name": "PropC",
        "Value": "#valueof($.PropC)"
      }
    },
    {
      "#ifgroup(#exists($.PropD))": {
        "Name": "PropD",
        "Value": "#valueof($.PropD)"
      }
    },
    {
      "#ifgroup(#exists($.PropE))": {
        "Name": "PropE",
        "Value": "#valueof($.PropE)"
      }
    }
  ]
}

I'm getting the following output:

{
	"PropA": "a",
	"PropB": "b",
	"Props": [
		{
			"Name": "PropC",
			"Value": "c"
		},
		{},
		{
			"Name": "PropE",
			"Value": "e"
		}
	]
}

Where PropD is transformed as an empty object element.

Is there a way to prevent this, or should I just do a second transformation that removes the empty element?

Cheers!

[Courela]

Currently #ifgroup always return an array, even if it's empty.
Maybe an EvaluationMode for this would be handy...