convert JSON array to csv.

convertJSONArrayToCSV.js

module.exports = function(jsonArray)
{
  var json = jsonArray[0];
  var keys = [];
  for(var key in json)
  {
    keys.push(key);
  }
  
  var csv = "";
  for(var i=0;i<keys.length;i+=1)
  {
    var key = keys[i];
    csv += key;
    if(i+1<keys.length)
    {
      csv +=",";
    }
    csv += "\n";
  }
  
  for(var i=0;i<jsonArray.length;i+=1)
  {
    var json = jsonArray[i];
    for(var j=0;j<keys.length;j+=1)
    {
      var d = json[keys[j]];
      csv += d;
      if(j<keys.length)
      {
        csv += ",";
      }
    }
    csv += "\n";
  }

  return csv;
}