关于javascript:LeetCode-题解｜9-回文数

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/**
 * @param {number} x
 * @return {boolean}
 */
var isPalindrome = function (x) {if (x < 0) {return false;}
  let num = x;
  let reverse = 0;
  while (num != 0) {reverse = reverse * 10 + (num % 10);
    num = ~~(num / 10);
  }
  return reverse === x;
};