title: How to parse JSON received from Datatables ajax call?
body: <p>I can successfully fill my datatable with ajax call, but then I don't know how to parse JSON that is received by datatable with this ajax call.</p>
  
  <p>Here is my JavaScript code, that makes ajax call to the server and fills my datatable correctly:</p>
  
  <pre><code>$('#transactions').DataTable({
          "processing": true,
          "ajax": {
              "url": "/transactions
          },
          "columns": [
              { "data": "car"},
              { "data": "card_number"},
              { "data": "invoice"},
              { "data": "status"}
          ]
      });
  </code></pre>
  
  <p>This is the JSON object returned from the server:</p>
  
  <pre><code>{
    "data": [
      {
        "car": 190,
        "card_number": "6395637",
        "invoice": 200,
        "status": "success"
      },
      {
        "car": 191,
        "card_number": "9473650",
        "invoice": 180,
        "status": "success"
      }
    ],
    "balance": 7300
  }
  </code></pre>
  
  <p>As you can see, the <code>data</code> parameter of the returned JSON object is used by the datatables function to fill by datatables, and now I want to parse the <code>balance</code> parameter, but I can't. How can i achieve this?</p>