Add days to date using javascript

Question

I am trying to add days to a given date using javascript. I have the following code

function onChange(e) {
    var datepicker = $(\"#DatePicker\").val();
           


        

Answer 1

Is it a typo round joindate.setDate(joindate + numberOfDaysToAdd)?

I tried this code, it seems ok to me

    var joindate = new Date(2010, 5, 24);
    alert(joindate);
    var numberOfDaysToAdd = 1;
    joindate.setDate(joindate.getDate() + numberOfDaysToAdd);
    var dd = joindate.getDate();
    var mm = joindate.getMonth() + 1;
    var y = joindate.getFullYear();
    var joinFormattedDate = dd + '/' + mm + '/' + y;
    alert(joinFormattedDate);