Breaking change to get filename without extension in Swift2

Question

In Swift1, we can get file short name without extension by following code:

self.name = pathFilename.lastPathComponent.stringByDeletingPathExtension

While I updated to Swift 2, this API is not available anymore. With the warning message, I have to use NSURL. So the new code will be:

var filename = NSURL(fileURLWithPath: str).lastPathComponent
filename = NSURL(fileURLWithPath: filename!).URLByDeletingPathExtension?.relativePath

It is too complex API breaking change. Is there a better way that could make it simpler?

Answer 1

Why not:

self.name = NSURL(fileURLWithPath: str).URLByDeletingPathExtension?.lastPathComponent

I'm not fluent in Swift so there may be some missing ! or ? needed in there.

Answer 2

Swift 4

let url = URL(string: "https://example.com/myFile.html")
if let fileName = url?.deletingPathExtension().lastPathComponent {
    // fileName: myFile
    self.name = fileName
}