simple-fs-server/util/util.ts

export function removePrefixFromPathname(pathname: string, prefix: string): string {
    let ret = pathname;
    ret = ret.slice(prefix.length);
    if (ret.startsWith("/")) {
        ret = ret.slice(1);
    }
    if (ret === "") {
        ret = ".";
    }
    return ret;
}