题解 | #左旋转字符串#

function LeftRotateString(str, n)
{
    // write code here
    if(!str) return "";
    for(let i = 0; i < n; i++){
        str = str.slice(1) + str[0]
    }
    return str;
}
module.exports = {
    LeftRotateString : LeftRotateString
};