lamacode

Determine whether the input string is a palindrome or not const isPalindrome = (str) => { if ( str.length === 0 || str === undefined || str === null || typeof str !== 'string' ) return false; let newCleanedString = stringClean(str); let leftPointer = 0; let rightPointer = str.length - 1; while (leftPointer < rightPointer) { if (newCleanedString[leftPointer] === newCleanedString[