leetcode-344 反转字符串

/**
 * @param {character[]} s
 * @return {void} Do not return anything, modify s in-place instead.
 */
var reverseString = function (s) {
  const len = s.length;
  const mid = Math.floor(s.length / 2);
  for (let i = 0; i < mid; i++) {
    const temp = s[i];
    s[i] = s[len - i - 1];
    s[len - i - 1] = temp;
  }
  // console.log("🚀 ~ reverseString ~ s:", s);
  return s;
};
// reverseString(["h", "e", "l", "l", "o"]);