diff --git a/01-js/medium/palindrome.js b/01-js/medium/palindrome.js
index d8fe2d8f..f453660c 100644
--- a/01-js/medium/palindrome.js
+++ b/01-js/medium/palindrome.js
@@ -1,13 +1,16 @@
-/*
-  Implement a function `isPalindrome` which takes a string as argument and returns true/false as its result.
-  Note: the input string is case-insensitive which means 'Nan' is a palindrom as 'N' and 'n' are considered case-insensitive.
 
-  Once you've implemented the logic, test your code by running
-  - `npm run test-palindrome`
-*/
 
 function isPalindrome(str) {
+  var str1=str.replace(/[\W_]/g, '').toLowerCase();
+  var arr=[];
+  for(var i =str1.length-1;i>=0;i--){
+      arr.push(str1[i]);
+  }
+  var string1 = arr.join('');
+  if(string1==str1)
   return true;
+  else 
+  return false;
 }
 
 module.exports = isPalindrome;