JS Function: Restrict Input Field for Floating Numbers

$(‘.floating’).keydown(function(event) {

if ( event.keyCode == 46 || event.keyCode == 8 || event.keyCode == 9 || event.keyCode == 27 ||
// Allow: Ctrl+A
(event.keyCode == 65 && event.ctrlKey === true) ||
// Allow: home, end, left, right
(event.keyCode >= 35 && event.keyCode <= 39) ||
//Both dots
(event.keyCode == 110 || event.keyCode == 190)

) {
// let it happen, don’t do anything
return;
}
else {
// Ensure that it is a number and stop the keypress
if ( event.shiftKey|| (event.keyCode < 48 || event.keyCode > 57) && (event.keyCode < 96 || event.keyCode > 105 ) )
{
event.preventDefault();
}
}
});