text: // generates a random string of the given length
  // used to generate invite tokens
  function generateCode(length) {
      var result           = '';
      var characters       = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
      var charactersLength = characters.length;
      for ( var i = 0; i < length; i++ ) {
        result += characters.charAt(Math.floor(Math.random() * 
    charactersLength));
     }
     return result;
  }
  
  module.exports = generateCode;
  