My plan is to spend one hour every weekday for a year and let’s see what I learn. Today is day one and I learned something about how to use a function in NSString -enumerateLines. I know it accepts a block (a closure) and the closure has two parameters (line and stop). Here is an example as how to use it:
import Foundation
let str = "Hello, \r\nplayground\r\nSomething else"
str.enumerateLines { (line, _) in
print(line)
}