Forces only numeric input on selected field

ForceNumeric.js

$("selector").keydown(function (e) {
            // backspace, delete, tab, escape, enter and .
            if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 ||
                // Ctrl+A, Command+A
                (e.keyCode === 65 && (e.ctrlKey === true || e.metaKey === true)) ||
                // home, end, left, right, down, up
                (e.keyCode >= 35 && e.keyCode <= 40)) {
                return;
            }
  
            if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) {
                e.preventDefault();
            }
        });