First you define the String object and next call the writeToFile()
let home = FileManager.default.homeDirectoryForCurrentUser
let playgroundPath = “Documents/dev/xcode/DatePicker/c”
// Get your playground URL
let playgroundURL = home.appendingPathComponent(playgroundPath)
let text = “This is the text for the file”
let newFile = playgroundURL.appendingPathComponent(“test.txt”)
// First create a FileManager instance
let fileManager = FileManager.default
let path = playgroundURL.path
do{
try text.write(to: newFile, atomically: true, encoding: String.Encoding.utf8)
} catch {
print(“Error”)
}