Passing data to another viewcontroller Swift

We will pass a string to class second.

let text = "This is example text"

In ViewController.swift, function for button to open second class like this.

func next(sender: UIButton){

       let vc = second()

     vc.passingtext = text

        self.presentViewController(vc, animated: true, completion: nil)

    }

Ignore red mark error.

Go to class second.swift, copy to above override

var passingtext = " "

Add to viewDidLoad

la.text = passingtext

Run to see result.

We can pass text, number, array or any data types.