344.反转字符串

/*
 * @lc app=leetcode.cn id=344 lang=typescript
 *
 * [344] 反转字符串
 */

// @lc code=start
/**
 Do not return anything, modify s in-place instead.
 */
function reverseString(s: string[]): void {
	let l = 0,
		r = s.length - 1;
	while (l <= r) {
		// 交换
		[s[l], s[r]] = [s[r], s[l]];
		l++;
		r--;
	}
}

reverseString(["h", "e", "l", "l", "o"]);
// @lc code=end