javascript - How to bind change event dynamically in jquery -


i doing username availability check. made jquery ajax call, working fine , if username in use want make label , textbox in red color. purpose adding css class in callback function of $post() method. problem have css not applying. think problem in dynamically binding event please can 1 me in this. here jquery script,

$(document).on('change', '#uname', function() {      var uname = $(this).val();//get string typed user     if (uname!=''){         $.post('<%=request.getcontextpath()%>/controller/usernamecheckcontroller',{'uname':uname},                function(data) {                    $('.status').html(data);                    var status = $.trim($("#status").text());                    if(status=="username in use try another"){                        $('#unameblock').addclass('error');                     }                });     }     else{         $('.status').html('');     } });

help me fix please. thanks.

i think error lies on class selector

change

$.trim($("#status").text());

to

$.trim($(".status").text()); //--------^-----------------

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