344. 原地反转字符串

题目链接

/**
 Do not return anything, modify s in-place instead.
 */
 function reverseString(s: string[]): void {
    let end = s.length - 1;
    let start = 0;
    while(start < end) {
        const tmp = s[start];
        s[start] = s[end]
        s[end] = tmp;
        start += 1;
        end -= 1;
    }
 };

 (()=>{
    const aaa = ['a','b','c','d','e','f','g'];
    reverseString(aaa);
    console.log('reverseString', aaa);
 })()