NSFileManager delete contents of directory

Question

How do you delete all the contents of a directory without deleting the directory itself? I want to basically empty a folder yet leave it (and the permissions) intact.

Answer 1

Swift 3 if anyone needs it for a quick cut/paste

let fileManager = FileManager.default
let fileUrls = fileManager.enumerator(at: folderUrl, includingPropertiesForKeys: nil)
while let fileUrl = fileUrls?.nextObject() {
    do {
        try fileManager.removeItem(at: fileUrl as! URL)
    } catch {
        print(error)
    }
}