valid palindrome solution

Author: hyer0705

valid-palindrome/hyer0705.ts

@@ -0,0 +1,14 @@
+function isPalindrome(s: string): boolean {
+  const converted = s.toLowerCase().replace(/[^a-z\d]/g, "");
+
+  let l = 0;
+  let r = converted.length - 1;
+
+  while (l < r) {
+    if (converted[l] !== converted[r]) return false;
+    l++;
+    r--;
+  }
+
+  return true;
+}