$('input[name="test"]').bind('keydown', function(e) {
var keyCode = (e.which) ? e.which : event.keyCode
return !(keyCode > 31 && (keyCode < 48 || keyCode > 57));
});
This code validates that the data entry contains only numbers, but I need you to accept numbers and the character -
Thanks for your collaboration
To accept the script (-) the Key Code is 189, therefore we will validate that you also take into account that key:
$('input[name="test"]').bind('keydown', function(e) {
var keyCode = (e.which) ? e.which : event.keyCode
return !(keyCode > 31 && (keyCode < 48 || keyCode > 57) && keyCode != 189);
});<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="text" name="test" />Compare keyCode with: 189 , is the middle script code (" slash ") I with 109 which is the code for the minus sign (" NumpadSubtract ")