Why Jquery datepicker not work properly?

Question

 The javascript is :

<script type="text/javascript">
$(document).ready(function () {

alert('hi');
$("<%=txtDateDOC.ClientID%>").datepicker({

changeMonth: true,
changeYear: true,
hideIfNoPrevNext: false

});

});

</script> 

 

 The console error is : Use of getPreventDefault() is deprecated. Use defaultPrevented instead.