Question

$("#itemids").keypress(function(){
    var value = $(this).val().replace(" ", "");
    var words = value.split(",");
    $("#counter").html(words.length);
}); 

This function works well with keyboard. But when I use barcode scanner, (I’m just focusing cursor on textarea and it starts to scan barcode into textarea by delimiters like comma.) it doesn’t work at all.

I think it must be something other than keypress(function() . Because bc scanner enters words programmatically. How to get it work for both situations: keyboard and bc scanner?

Answer 1

It looks like the solution is to use polling, not events.

function update(){
    var value = $("#itemids").val().replace(" ", "");
    var words = value.split(",");
    $("#counter").html(words.length);
}

setInterval(update, 10); // poll every 10ms