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09 Palindromes: Replace Regex Solution (#319) 

* Replaces the original regex method, with more familiar methods
* Add descriptive comments for clarity
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Hifilo 2023-03-22 21:42:17 -04:00 committed by GitHub
parent 77c5d64b37
commit 9eb942909e
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1 changed files with 11 additions and 8 deletions
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palindromes/palindromes.js
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@ -1,11 +1,14 @@
const palindromes = function(string) { // Non regex
const processedString = string.toLowerCase().replace(/[^a-z]/g, ""); const palindromes = function (string) {
return ( let alphabet = 'abcdefghijklmnopqrstuvwxyz'; //Create a variable that holds all the letters of the alphabet
processedString const cleanedString = string // Convert to lowercase, split, & filter only letters, rejoin as new const
.split("") .toLowerCase()
.reverse() .split('')
.join("") == processedString .filter((letter) => alphabet.includes(letter))
); .join('');
const reversedString = cleanedString.split('').reverse().join(''); //Create a new const that holds reversed string
return cleanedString === reversedString; //Compare cleanedString & reversedString which returns true/false
}; };
// Do not edit below this line
module.exports = palindromes; module.exports = palindromes;