Can you guys explain this to me. Thanks.

Hi Jose, I remember when I did this quiz I got a little confused too. The point is, the code there is not complete, we don't know what is the value of gameOver, but what they want to understand there is a little bit of interpretation. Is indeed a valid statement, because while the game is not over you can keep playing. The use of the "!" symbol (simple that means not, in the code not gameOver) is totally correct, because it can be assign to a variable too.

Hope that helps

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I'm not sure if I understand you correctly so if we do the coding on Xcode we can use --> while !gameOver. Is it the same with ---> while game != gameOver. Do you think you can give me an example of coding of it, if not it's cool. Thanks.

So you need to define gameOver, in my case, I kept it simple, I defined gameOver = false, so when not gameOver, means it is equal true and then it would print keep playing.

var gameOver = false

while !gameOver {
    println("keep playing")
    gameOver = !gameOver
}

And after the println statement I defined gameOver to = !gameOver, that way it will change again to false and do an infinity loop.

Try running the code in a playground and see what happened. And them change the value of the var gameOver.

Thank you so much. Now I understand it much better. I tried this doing this code too. Thanks again! =)

var gameOver = false

if !gameOver { println("keep playing") gameOver = !gameOver } else { println("GAME OVER") }

You Welcome, please give it a best if you found the answer clear, that way I will be able to help others.

=)

I would give it best answer but it won't let me do it. I don't know how. I am kinda new here on treehouse. Thanks! Appreciate!