functions, closures, completion handler

func laughOutLoud(input: String,

numOfTimes: Int, completion: (_ result: String) -> Void) {

print ("start of function")

print ("We are to display \(input) \(numOfTimes) times")

for i in 0 ..< numOfTimes {

print("\(input) number \(i)")

}

completion("Finished laughing!")

print ("end of function")

}

laughOutLoud(input: "HA ", numOfTimes: 10) {

(result) in //variable result is what is spit back out to us

print ("start of the completion handler")

print ("the result from the laughOutLoud is: \(result)")

print ("end of the completion handler")

}