题解 | #字符串的排列#

切片轻松搞定

function LeftRotateString(str, n)
{
    // write code here
    if(!str) return "";
    n = n % str.length;
    let res = str.slice(n,str.length) + str.slice(0,n);
    return res;
}
module.exports = {
    LeftRotateString : LeftRotateString
};