valid palindrome

Author: Totschka

valid-palindrome/Totschka.ts

@@ -0,0 +1,10 @@
+// https://leetcode.com/problems/valid-palindrome/description/
+function isPalindrome(s: string): boolean {
+  s = s.replace(/[^a-zA-Z0-9]/g, '').toLowerCase();
+  for (let i = 0; i < s.length / 2; i++) {
+    if (s[i] !== s[s.length - 1 - i]) {
+      return false;
+    }
+  }
+  return true;
+}