Restrict input to number only on pasting

Question

I have an input filed with a class called restrict-numbers which i want to restrict the entered characters to only accept numbers, i used the following code which is great b

Answer 1

$(".numbersOnly").bind('paste', function(e) {
        var self = this;
        setTimeout(function(e) {
            var val = $(self).val();
            if (val != '0') {
                var regx = new RegExp(/^[0-9]+$/);
                if (!regx.test(val)) {
                    $(".numbersOnly").val("");
                }
                $(this).val(val);
            }
        }, 0);
    });