first commit

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

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+/* eslint-disable func-names */
+/* Validator pesel */
+jQuery.validator.addMethod(
+  "pesel",
+  function(value, element) {
+    const reg = /^[0-9]{11}$/;
+    let sum;
+
+    if (reg.test(value) === false) {
+      return this.optional(element) || false;
+    }
+    const dig = `${value}`.split("");
+    sum =
+      (1 * parseInt(dig[0], 10) +
+        3 * parseInt(dig[1], 10) +
+        7 * parseInt(dig[2], 10) +
+        9 * parseInt(dig[3], 10) +
+        1 * parseInt(dig[4], 10) +
+        3 * parseInt(dig[5], 10) +
+        7 * parseInt(dig[6], 10) +
+        9 * parseInt(dig[7], 10) +
+        1 * parseInt(dig[8], 10) +
+        3 * parseInt(dig[9], 10)) %
+      10;
+
+    if (sum === 0) {
+      sum = 10;
+    }
+
+    const day = parseInt(`${dig[4]}${dig[5]}`, 10);
+    if (day < 1 || day > 31) {
+      return this.optional(element) || false;
+    }
+
+    sum = 10 - sum;
+
+    return this.optional(element) || parseInt(dig[10], 10) === sum;
+  },
+  "Proszę wpisać poprawny numer PESEL"
+);
+
+/* Pesel validator */
+jQuery.validator.addClassRules("js-validation-pesel", {
+  pesel: true,
+});