valid-pailndrome solution

Author: Moonjonghoo

valid-palindrome/moonjonghoo.js

@@ -0,0 +1,17 @@
+/**
+ * @param {string} s
+ * @return {boolean}
+ */
+
+var isPalindrome = function (s) {
+  // 1. 영숫자만 남기고, 소문자로 변환
+  let cleaned = s.toLowerCase().replace(/[^a-z0-9]/g, "");
+
+  // 2. 뒤집기
+  let reversed = cleaned.split("").reverse().join("");
+
+  // 3. 비교
+  return cleaned === reversed;
+};
+
+isPalindrome("A man, a plan, a canal: Panama");