ngth === 1) {
            string += this.interests[0] + '.';
          } else if(this.interests.length === 2) {
            string += this.interests[0] + ' and ' + this.interests[1] + '.';
          } else {
            // if there are more than 2 interests, we loop through them
            // all, adding each one to the main string followed by a comma,
            // except for the last one, which needs an and & a full stop
            for(let i = 0; i < this.interests.length; i++) {
              if(i ===