javascript (jquery) numeric input: keyCode for '3' and '#' are the same

Question

I need to set up an so that it will accept only numeric chars, backspace, delete, enter, tabs and arrows.

There\'s a lot o

Answer 1

How about something like this. This should cover cut/paste and also rmb content. We monitor the textbox for any change in content. Then we use a regex to filter out characters based on a whitelist. This won't handle non-character key, but I think that is okay.

The \d flag says that only digits should be accepted.

http://jsfiddle.net/UXeva/1

$('#myTextBox').bind('input propertychange', function() {
    var text = $(this).val();
    if (isNaN(text)) {
       $(this).val(text.replace(/[^\d]/gi, ''));
    }
});

We bind to two events here. input for FireFox and propertychange for other browsers.