Read in Swift

In Swift, reading a file can be done using the FileManager class. The following is an example code snippet that reads a file called example.txt in the user's documents directory:

let fileManager = FileManager.default
let documentsURL = try! fileManager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
let fileURL = documentsURL.appendingPathComponent("example.txt")
if let fileContents = try? String(contentsOf: fileURL) {
    print(fileContents)
} else {
    print("Unable to read file")
}

This code first creates an instance of FileManager, then retrieves the URL for the user's documents directory. It appends the file name to the URL to get the full path to the file. It then attempts to read the contents of the file as a string using the String method contentsOf. If the read is successful, it prints the contents of the file to the console. If it fails, it will print an error message.