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Aug 17th, 2018
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  1. function isPalindrome(string) {
  2. string = string.toLowerCase();
  3. var charArr = string.split('');
  4. var validChars = 'abcdefghijklmnopqrstuvwxyz'.split('');
  5.  
  6. var lettersArr = [];
  7. charArr.forEach(character => {
  8. if(validChars.indexOf(character) > -1){
  9. lettersArr.push(character);
  10. }
  11. });
  12.  
  13. if(lettersArr.join('') === lettersArr.reverse().join('')){
  14. return true;
  15. }else{
  16. return false;
  17. }
  18. }
  19.  
  20. isPalindrome("bob");
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