Show Execution Time (Elapsed Time)

Sometimes you want to see how long it took some code to execute. Here is an example of one way you could do this.

 
func myLongRunningFunction() {
    let start = Date()

    // Do you work

    let end = Date()
    let elapsedTime = end.timeIntervalSince(start)
    print("Elapsed Time: \(elapsedTime)")
}
 

(Swift 3)