$('#example').on('keypress keyup keydown',function(event) { 

  // create the event

   var press = jQuery.Event(event.type);

   var code = event.keyCode || event.which;

   press.which = code ;   

  // trigger 

  $('#search').val(this.value);

  $('#search').trigger(event.type, {'event': press});

});

​

​

$('#search').on('keypress keyup keydown',function(event) { 

   // sample  

   console.log(event.type);

});