gistfile1.txt

  getMonth(){
     let months = [];
     for (var i = 1; i <= 12; i++) {
       i < 10 ? months.push('0' + i) :  months.push(i);
     }
     return months;
   }
   
   vs
   
   getMonth(){
    return ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12']
   }