Untitled

<!DOCTYPE html>
<html>
<head>
<meta name="description" content="[add your bin description]">
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
var isPalindrome = function(str) {
    var strLen = str.length;
    if (strLen === 0 || strLen === 1) {
        return true;
    }

    if (str[0] === str[strLen - 1]) {
        return isPalindrome( str.slice(1, strLen - 1) );
    }

    return false;
};

console.log(isPalindrome('madam'));
</script>


<script id="jsbin-source-javascript" type="text/javascript">var isPalindrome = function(str) {
    var strLen = str.length;
    if (strLen === 0 || strLen === 1) {
        return true;
    }

    if (str[0] === str[strLen - 1]) {
        return isPalindrome( str.slice(1, strLen - 1) );
    }

    return false;
};

console.log(isPalindrome('madam'));</script></body>
</html>