text: function convertDate(date, past) {
  
      date.setDate(date.getDate() + past);
  
      var yyyy = date.getFullYear().toString();
      var mm = (date.getMonth() + 1).toString();
      var dd = date.getDate().toString();
  
      var mmChars = mm.split('');
      var ddChars = dd.split('');
  
      return yyyy + (mmChars[1] ? mm : "0" + mmChars[0]) + (ddChars[1] ? dd : "0" + ddChars[0]);
  }
  
  function changeDate(date, past) {
  
      date.setDate(date.getDate() + past);
      return date;
  }
  
  module.exports = {convertDate, changeDate};