Question

How to check if string is palindrome ignore case in JavaScript

Answer 1

function isPalindrome(str) {
    str = str.replace(/\W/g, '').toLowerCase();
  
    return (str == str.split('').reverse().join(''));
}

const str = "javascripttpircsAvAj"
  
console.log(isPalindrome(str));
     
     
          
  
/*
  
run:
  
true
  
*/

 

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Answer 2

function isPalindrome(str) {
    return str.toLowerCase() === str.toLowerCase().split('').reverse().join('');
}

const str = "javascripttpircsAvAj"
  
console.log(isPalindrome(str));
     
     
          
  
/*
  
run:
  
true
  

 

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