diff --git a/js/function.js b/js/function.js
new file mode 100644
index 0000000..0c87155
--- /dev/null
+++ b/js/function.js
@@ -0,0 +1,31 @@
+const checkStringLength = (string, length) => string.length <= length;
+
+checkStringLength('проверяемая строка', 10);
+
+
+function validatePalindrome(string) {
+  string = string.replaceAll(' ', '').toLowerCase();
+  let result = '';
+  for(let i = string.length - 1; i >= 0; i--) {
+    result += string[i];
+  }
+  return string === result;
+}
+
+validatePalindrome('Лёша на полке клопа нашёл');
+
+
+function getNumberFromString(string) {
+  string = string.toString().replaceAll(' ', '');
+  let result = '';
+  for(let i = 0; i < string.length; i++) {
+    if(Number.isNaN(parseInt(string[i], 10))){
+      continue;
+    }
+    result += string[i];
+  }
+
+  return parseInt(result, 10);
+}
+
+getNumberFromString('ECMAScript 2022');