jQuery - Create hidden form element on the fly

Question

What is the simplest way to dynamically create a hidden input form field using jQuery?

Answer 1

$('<input>').attr('type','hidden').appendTo('form'); 

To answer your second question:

$('<input>').attr({     type: 'hidden',     id: 'foo',     name: 'bar' }).appendTo('form'); 

Answer 2

$('#myformelement').append('<input type="hidden" name="myfieldname" value="myvalue" />');