I`m following a tutorial but i did non understand well how to bind a bind a drop event to a target using Jquery; if I have this function:

    function changeTarget(event, ui){
      $("#target").addClass("ui-state-highlight")
      .html("Dropped ")
      .append(ui.draggable.text());
    } // end changeTarget

and I use bind() on a Jquery object:

$("#target").bind("drop", changeTarget);

Why are the parameters not needed to call the function here?