[SOLVED] Adding days to datebox

[thecyberzone]

I have a easyui-datebox, say $('stdate') and another easyui-textbox $('days') contains number of days. After selecting any date from  $('stdate') I want to add  $('days') number of days and display the result into another easyui-datebox, say $('enddate').

Please help me.

[thecyberzone]

This is my code :

Code:

	$('#stdate').datebox({
		onSelect: function(d){
			var g = $('#prog').combogrid('grid');	
			var r = g.datagrid('getSelected');

		    var dt = new Date(d);
alert(dt);
		    dt.setDate(dt.getDate() + r.DURATION);
alert(dt);		    
		    var dd = dt.getDate();
		    var mm = dt.getMonth() + 1;
		    var y = dt.getFullYear();

		    var newDate = mm + '/' + dd + '/' + y; 
		    $('#enddate').datebox('setValue',newDate); 
		}
	});

Each time I put 03/20/2019 in #stdate and 3 as days/duration, result in #enddate always shows 09/19/2019, and this is wrong answer. I could not understand why this is happening. Please help.

[thecyberzone]

I have solved it, actually this line
dt.setDate(dt.getDate() + r.DURATION);
should be writen as
dt.setDate(parseInt(dt.getDate()) + parseInt(r.DURATION));