ReadDir and DirEntry

This lesson discusses os.ReadDir() and os.DirEntry. However, it begins by discussing the deprecation of the io/ioutil package—the functionality of the io/ioutil package has been transferred to other packages. So, we have the following:

• os.ReadDir(), which is a new function, returns []DirEntry. This means that it can’t directly replace ioutil.ReadDir(), which returns []FileInfo. Although neither os.ReadDir() nor os.DirEntry offer any new functionality, they make things faster and simpler, which is important.

• The os.ReadFile() function directly replaces ioutil.ReadFile(). ...