Convert JSON to CSV using jQuery

HTML

<span>JSON:</span>
<pre id="json"></pre>
<input type="button" id="btnConvert" value="Convert To CSV" />

CSS

body {
  font-family: calibri;
}

span {
  font-weight: bold;
  margin-bottom: 5px;
  font-size: 18px;
  text-decoration: underline;
  color: blue;
}

pre {
  font-size: 14px;
}

JavaScript

var jData = '[{"fname":"Mark", "lname":"Wood", "company":"Apple"},' +
  '{"fname":"Steve", "lname":"Jones", "company":"Amazon"},' +
  '{"fname":"Bill", "lname":"Peterson", "company":"HP"},' +
  '{"fname":"Peter", "lname":"Jacobs", "company":"Dell"}]';

var seperator = ',';
$('#json').html(jData);
$('#btnConvert').click(function() {
  ConvertToCSV(jData, "Employee Data", true, "EmployeeReport", seperator)
});

function ConvertToCSV(jData, title, ShowHeader, fileName, delimiter) {
  var arrJSON = typeof jData != 'object' ? JSON.parse(jData) : jData;
  var strCSV = '';
  //Set title first.
  if (title.length > 0)
    strCSV += title + '\r\n\n';
  if (ShowHeader) {
    var headerRow = "";
    for (var index in arrJSON[0]) {

      if (headerRow != '') headerRow += delimiter;
      headerRow += index;
    }
    strCSV += headerRow + '\r\n';
  }

  for (var i = 0; i < arrJSON.length; i++) {
    var sLine = '';
    for (var index in arrJSON[i]) {
      if (sLine != '') sLine += delimiter;
      sLine += arrJSON[i][index];
    }
    strCSV += sLine + '\r\n';
  }

  if (strCSV == '') {
    console.log('Error while converting due to invalid data');
    return;
  }

  var uri = 'data:text/csv;charset=utf-8,' + escape(strCSV);
  var link = document.createElement("a");
  link.href = uri;
  link.style = "visibility:hidden";
  link.download = fileName + ".csv";
  $('body').append(link);
  link.click();
  $('body').remove(link);
}