check if a sentence is palindrome js code example

Example 1: javascript palindrome check

const isPalindrome = str => str === str.split('').reverse().join('');

// Examples
isPalindrome('abc');        // false
isPalindrom('abcba');       // true

Example 2: palindrome javascript

function palindrome(str) {
 var splitted = str.split("");
 var reversed = splitted.reverse("");
 var joined = reversed.join("");
 return joined.toLowerCase().replace(/[^0-9a-z]/gi, '') == str.toLowerCase().replace(/[^0-9a-z]/gi, '')
}