How can i loop through the entire JSON and get all the empids?

I have a JSON as folows

{
  "name": "Employee Fields",
  "id": "Employee",
  "rows": [
    {
      "data": [
        {
          "emp": "111",
          "label": "Name",
          "disabled": false
        },
        {
          "emp": "112",
          "label": "Name",
          "disabled": false
        }
      ]
    },
    {
      "data": [
        {
          "emp": "113",
          "label": "Name",
          "disabled": false
        },
        {
          "emp": "114",
          "label": "Name",
          "disabled": false
        }
      ]
    },
    {
      "data": [
        {
          "emp": "115",
          "label": "Name",
          "disabled": false
        },
        {
          "emp": "116",
          "label": "Name",
          "disabled": false
        }
      ]
    }
  ]
}

enter image description here

How can i loop throuh all the empIds??

https://jsfiddle.net/o2gxgz9r/70859/

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