Leetcode -- number of palindromes

Title Description

• Give you an integer x , If x Is a palindrome integer , return true ; otherwise , return false .
• Palindrome number refers to positive order （ From left to right ） Reverse order （ From right to left ） Read all the same integers . for example ,121 It's palindrome. , and 123 No .
• Example 1：
• Input ：x = 121
• Output ：true
• Example 2：
• Input ：x = -121
• Output ：false
• explain ： Read left to right , by -121 . Read right to left , by 121- . So it's not a palindrome number .
• Example 3：
• Input ：x = 10
• Output ：false
• explain ： Read right to left , by 01 . So it's not a palindrome number .
• Example 4：
• Input ：x = -101
• Output ：false

How to solve the problem

Method 1

    var isPalindrome = function(x) {
     
        let s=x+"";
        let result=[];
        for(let i=s.length-1;i>=0;i--){
     
            result.push(s[i]);
        }
        if(s==result.join("")){
     
            return true;
        }
        else{
     
            return false;
        }
    };

Method 2

    var isPalindrome = function(x) {
     
        return x.toString()==x.toString().split('').reverse().join('');
    };