first commit

plugins/jquery-validation/polish/validator.number-not-negative.js

@@ -0,0 +1,19 @@
+/* eslint-disable func-names */
+
+/* Validator number >= 0 */
+jQuery.validator.addMethod(
+  "number_not_negative",
+  function(value, element) {
+    let val = value;
+    val = val.replace(",", ".");
+    const isNumber =
+      !isNaN(parseFloat(val)) && isFinite(val) && parseFloat(value) >= 0;
+    return this.optional(element) || isNumber;
+  },
+  "Proszę wpisać poprawną liczbę."
+);
+
+/* Number not negative validation */
+jQuery.validator.addClassRules("js-validation-number-not-negative", {
+  number_not_negative: true,
+});