Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift 2.0 Basics Swift Operators Working With Operators: Part 2

Michael Batista
Michael Batista
1,289 Points

Not Operator with a number

In this game of ours, we have an odd scoring mechanism . At the end of the round, if your score is 10, you lose! If it's anything but 10, you win.

Declare a constant named isWinner and assign the results of a comparison operation to check whether the player has won or not. If the total score is not 10, then the player has won, otherwise he or she has lost. (Hint: Use the NOT operator)

Ive tried this multiple ways It would be nice if they gave us the correct way at some point and marked me wrong so I Know the correct answer and can move on.

1 Answer

Dave Berning
Dave Berning
17,365 Points

Use the increment operator (++). Make sure you add the increment operator before the variable. Adding it before will increment it and then return the variable with the updated value.

var initialScore = 8 
let totalScore = ++initialScore // add this line of code
Michael Batista
Michael Batista
1,289 Points

Thanks for the response. I think I have that part declaring the winner of not 10 was the part I'm having a hard time with.