回文数

[Sunny-117]

No description provided.

[lxy-Jason]

/**
 * @param {number} x
 * @return {boolean}
 */
var isPalindrome = function(x) {
    x = String(x)
    let left = 0, right = x.length - 1;

    while(left <= right){
        if(x[left] !== x[right]){
            return false
        }
        left++
        right--
    }
    return true
};