Get filename without extension

Consider the following filename:

hls_a128_v4.m3u8

We are interested in getting filename only (without extension). We can do so with the help of following code:

// https://hashaam.com/2017/09/02/get-filename-without-extension
let path = "hls_a128_v4.m3u8"
let url = URL(string: path)
let filename = url?.deletingPathExtension().lastPathComponent
print(filename) // hls_a128_v4
let fileExtension = url?.pathExtension
print(fileExtension) // m3u8