text: function isPalindrome(numbers = []) {
  
      for (const num of numbers) {
  
          let isPalindrome = true;
          let numLength = num.toString().length;
  
          for (let i = 0; i < numLength / 2; i++) {
              let numStr= num.toString();
              if (numStr[i] !== numStr[numLength - 1 - i]) {
                  isPalindrome = false;
                  break;
              }
          }
          console.log(isPalindrome);
      }
  }
  
  isPalindrome([123,323,421,121]);