javascript - onblur is getting called before textbox gets updated -

i have textbox date user can select date using datepicker.

i want know if date gets changed added onblur textbox:

<asp:textbox runat="server" id="txtdate" cssclass="dateonly" width="80px" onblur="checkifdatechanged(this.value)" ></asp:textbox> 

then in jquery wanted check date getting added alert:

function checkifdatechanged(date) {    alert(date); } 

the onblur seems called before textbox changes new date. if current date 28/10/2016 , change 29/10/2016 alert shows 28/10/2016. date changes after close alert message.

how know if date gets changed when select new date datepicker?

you can use onselect event.

$(".dateonly").datepicker({   onselect: function(date) {     display("date: " + this.value);   } }); 

read more https://api.jqueryui.com/datepicker/#option-onselect