May be it's duplicate question,
i see every page on stack overflow, for this type of error.
but didn't get my solution.
Here is my fiddle : https://jsfiddle.net/eua98tqa/6/
HTML:
<input type="button" value="SeeChange" onClick="javascript:AddDate(Date(), 3);return false;" />
jQuery:
function AddDate(AddedDate, DateToBeAdded) {
var result = new Date(AddedDate);
result.setDate(result.getDate() + DateToBeAdded);
alert(result);
}
Note: works fine in my VS2015, FFConsole.