Function parentDir

src/valdi_modules/src/valdi/file_system/web/FileSystem.ts:37–41

(p: string)

  return ROOT + stack.join("/");
}
function parentDir(p: string): string {
  if (p === ROOT) return ROOT;
  const idx = p.lastIndexOf("/");
  return idx > 0 ? p.slice(0, idx) : ROOT;
}

/* -------- in-memory FS state -------- */