first commit

plugins/jquery-validation/polish/validator.lastname.js

@@ -0,0 +1,19 @@
+/* eslint-disable func-names */
+
+/* Validator lastname */
+jQuery.validator.addMethod(
+  "lastname",
+  function(value, element) {
+    /* eslint-disable max-len */
+    const reg = /^[a-zA-ZąĄęĘóśŚÓłŁżŻźŹćĆńŃÄäÖöÜüß]{2,}\s?(-?\s?[a-zA-ZąĄęĘóśŚÓłŁżŻźŹćĆńŃÄäÖöÜüß]{2,})?$/;
+    /* eslint-enable max-len */
+    return this.optional(element) || reg.test(value);
+  },
+  "Wprowadź poprawnie nazwisko"
+);
+
+/* Lastname validator */
+jQuery.validator.addClassRules("js-validation-lastname", {
+  maxlength: 40,
+  lastname: true,
+});