Disable an IBAction

Question

I've created an IBAction from a button on the storyboard. After it is clicked, I want to disable it so its no longer functional. How can I do this?

 @IBAction func b1(sender: AnyObject) {
    displayLabel(1)
}

Answer 1

Create an outlet for your button and set its enabled property to false in your b1 func. Say your outlet is "button1":

    button1.enabled = false