jquery simulate click keypress

jquery simulate click key.js

 $("#test4000").keydown(function(e){
            console.log("%s %s","enter keypress", e.keyCode);
            var value = $(this).val() + String.fromCharCode(e.keyCode);
            $(this).val(value);
        })

        $("#test3000").click(function(){
            console.log("enter!");
             var e = $.Event("keydown");
             e.keyCode = e.which = 50;
            $("#test4000").trigger(e);

        })

        $(document).keypress(function(e){

            if(e.ctrlKey && e.shiftKey && e.keyCode ==5){
               location.reload();
            }

})