first commit

plugins/jquery-validation/polish/validator.number-between.js

@@ -0,0 +1,17 @@
+/* eslint-disable func-names */
+
+/* Validator number between */
+jQuery.validator.addMethod(
+  "number_between",
+  function(value, element, param) {
+    let val = value;
+    val = val.replace(",", ".");
+    const isNumber =
+      !isNaN(parseFloat(val)) &&
+      isFinite(val) &&
+      parseFloat(val) >= parseFloat(param[0]) &&
+      parseFloat(val) <= parseFloat(param[1]);
+    return this.optional(element) || isNumber;
+  },
+  "Proszę wpisać wartość pomiędzy {0} i {1}."
+);