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- function isPalindrome(string) {
- string = string.toLowerCase();
- var charArr = string.split('');
- var validChars = 'abcdefghijklmnopqrstuvwxyz'.split('');
- var lettersArr = [];
- charArr.forEach(character => {
- if(validChars.indexOf(character) > -1){
- lettersArr.push(character);
- }
- });
- if(lettersArr.join('') === lettersArr.reverse().join('')){
- return true;
- }else{
- return false;
- }
- }
- isPalindrome("bob");
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