typescript date minus days code example

Example 1: javascript subtract days from date

var myCurrentDate=new Date();
var myPastDate=new Date(myCurrentDate);
    myPastDate.setDate(myPastDate.getDate() - 8);//myPastDate is now 8 days in the past

Example 2: typescript add days to date

addDays(days : number): Date{
  var futureDate = new Date();
  futureDate.setDate(futureDate.getDate() + days);
  return futureDate;
}