jquery update textbox value while typing on another textbox

Question

I have 2 textbox fields. Email and Username. When i type into the email field I want the username to be update live dynamically, letter for letter by the email field. I have this code but it's not working

$('#txt_email').keyup(function() {
                $('#txt_username').text($(this).val());
            });

fiddle: http://jsfiddle.net/j7ECW/

Answer 1

Change:

$('#txt_username').text($(this).val());

to:

$('#txt_username').val($(this).val());

jsFiddle example