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/**
* @param {number} x
* @return {boolean}
*/
var isPalindrome = function(x) {
let rs='';
let str= x+'';
rs+= str.split('').reverse().join('');
let t= x===Number(rs);
return t
};
The text was updated successfully, but these errors were encountered:
判断一个整数是否是回文数。回文数是指正序(从左向右)和倒序(从右向左)读都是一样的整数。
示例 1:
输入: 121
输出: true
示例 2:
输入: -121
输出: false
解释: 从左向右读, 为 -121 。 从右向左读, 为 121- 。因此它不是一个回文数。
示例 3:
输入: 10
输出: false
解释: 从右向左读, 为 01 。因此它不是一个回文数。
进阶:
你能不将整数转为字符串来解决这个问题吗?
解法
1 number 转 string
2 字符串反转
3 string转number 对比 返回结果
The text was updated successfully, but these errors were encountered: