MAGETWO-91784: On Payment screen up and down arrow key allow to add -ve numbers

- Trim the first dash in "Credit Card Number" field

Author: Nikita Chubukov

app/code/Magento/Payment/view/base/web/js/model/credit-card-validation/credit-card-number-validator.js

@@ -36,7 +36,7 @@ define([
             return resultWrapper(null, false, false);
         }
 
-        value = value.replace(/\-|\s/g, '');
+        value = value.replace(/|\s/g, '');
 
         if (!/^\d*$/.test(value)) {
             return resultWrapper(null, false, false);

app/code/Magento/Payment/view/base/web/js/model/credit-card-validation/validator.js

@@ -23,6 +23,12 @@
 }(function ($, cvvValidator, creditCardNumberValidator, yearValidator, monthValidator, creditCardData) {
     'use strict';
 
+    $('.payment-method-content input[type="number"]').on('keyup', function() {
+        if ($(this).val() < 0) {
+            $(this).val($(this).val().replace(/^-/, ''));
+        }
+    });
+
     $.each({
         'validate-card-type': [
             function (number, item, allowedTypes) {