From 2d08affc71bdb26f795867d2d19508d2226acaf8 Mon Sep 17 00:00:00 2001
From: Alla <n4lla@ya.ru>
Date: Sat, 13 Jun 2026 11:20:31 +0300
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D1=8F?=
 =?UTF-8?q?=D0=B5=D1=82=20=D1=84=D1=83=D0=BD=D0=BA=D1=86=D0=B8=D0=B8?=
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---
 js/function.js | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 js/function.js

diff --git a/js/function.js b/js/function.js
new file mode 100644
index 0000000..56a3d0b
--- /dev/null
+++ b/js/function.js
@@ -0,0 +1,45 @@
+
+
+//Функция для проверки длины строки
+
+let checksString = function (string, length) {
+  if (string.length <= length) {
+    return true;
+  }
+  return false;
+};
+//Функция для проверки, является ли строка палиндромом
+
+let isPalindrome = function (string) {
+  let normalized = string
+    .replaceAll(' ', '')
+    .toLowerCase();
+  let reversed = '';
+  for (let i = normalized.length - 1; i >= 0; i--) {
+    let char = normalized[i];
+    reversed += char;
+  }
+  return normalized === reversed;
+};
+
+//Функция извлечения цифр
+let extractDigits = function (string) {
+  if (typeof string === 'number') {
+    string = string.toString();
+  }
+  let digits = '';
+  for (let i = 0; i < string.length; i++) {
+    let char = string[i];
+    if (char >= '0' && char <= '9') {
+      digits += char;
+    }
+  }
+  if (digits === '') {
+    return NaN;
+  }
+  let result = parseInt(digits);
+  if (result < 0) {
+    result = result * -1;
+  }
+  return result;
+};