timestamp yyyy-mm-dd

export const timeStamToStr = (timestamp:number|undefined) => {
  if(timestamp){
    try{
      let date = new Date(timestamp)
      return date.getFullYear()+'-'+fillZeroDay(date.getMonth()+1)+'-'+fillZeroDay(date.getDate())
    }catch(e){return ''}
  }
}

export const fillZeroDay = (day: number):String => {
  return day<10 ? '0'+day : ''+day
}