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/*
Description:
Given an input string determine whether or not it is a Palindrome (e.g. “racecar”) by returning a boolean response. A true1 response indicates the input is a valid Palindrome.
Ignore whitespace, special characters, and case.
*/
function isPalindrome(str){
str=str.toLowerCase().replace(/[^a-z]/g,”);
return str===str.split(“).reverse().join“
}
