Question

Is it possible to get next date of a given date in “yyyymmdd” format with default java script or jquery functions?

Answer 1

As you’ve specified jQuery UI you can use its built-in date formatter to get the required output.

The use of the regexp and new Date shown below is to guarantee that the vagaries of date parsing don’t affect the result.

function getTomorrow(dateStr) {
    var ymd = dateStr.match(/^(\d{4})(\d{2})(\d{2})$/);
    if (ymd) {
        var date = new Date(ymd[1], ymd[2] - 1, ymd[3]);
        date.setDate(date.getDate() + 1);
        return $.datepicker.formatDate('yymmdd', date);
    } else {  // parse error
        return null;
    }
}

Demo at http://jsfiddle.net/alnitak/R8awH/