how to add no of days to date javascript code example

Example 1: javascript add days to date

var myCurrentDate=new Date();
var myFutureDate=new Date(myCurrentDate);
    myFutureDate.setDate(myFutureDate.getDate()+ 8);//myFutureDate is now 8 days in the future

Example 2: nodejs date add days

date.setTime( date.getTime() + days * 86400000 );