johnny
johnny

Reputation: 61

Use println in a swift app

I am new to swift and iOS development and wanted to build a simple Hello World app but I don't know where to write the println or find any tutorials as all are using the UIStoryboard. Could you tell me how to output hello world without using UIStoryboard and which file to write it. Thanks a lot.

Upvotes: 0

Views: 887

Answers (2)

user4072094
user4072094

Reputation:

To print the message in the Xcode console (you can do this in any file):

println("Hello World!)

If you want to see the message in the simulator (put this in your view controller file):

override func viewDidLoad() {
    super.viewDidLoad()
    var helloWorldLabel = UILabel(frame: CGRectMake(0, 0, 200, 21))
    helloWorldLabel.text = "Hello World!"
    self.view.addSubview(helloWorldLabel)
}

As a beginner program, I found the WWDC videos very helpful, you might want to check them out.

Hope this helps, Will

Upvotes: 3

Aakif
Aakif

Reputation: 11

In objective c we use the NSLog and in swift we use the println , to check the output in console . suppose in a method we want to check the conditional statement like if -else :

 if error != nil {
                println("Error: \(error)") //
            }
            else {
                println("Successfully")
                println("we can also use the break points to check the value")

}

Upvotes: -1

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