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

Parvinder Grewal
Parvinder Grewal
3,678 Points

swift comparisons

My answer compiles in a Xcode playground but now in the web editor.

Parvinder Grewal
Parvinder Grewal
3,678 Points

// Enter your code below let value = 200 let divisor = 5

let someOperation = 20 + 400 % 10 / 2 - 15 let anotherOperation = 52 * 27 % 200 / 2 + 5

// Task 1 - Enter your code below let result = value % divisor

// Task 2 - Enter your code below if result == 0 { let isPerfectMultiple = result }

1 Answer

Brendan Whiting
.a{fill-rule:evenodd;}techdegree seal-36
Brendan Whiting
Front End Web Development Techdegree Graduate 84,735 Points

In your version, if result is 0, then we'll create a constant named isPerfectMultiple and it will be the same as result, which is 0.

What they want is for isPerfectMultiple to be a boolean, either true or false. The true or false value will be the result of comparing result to 0. If result is 0, then isPerfectMultiple will be true. If result is not 0, then isPerfectMultiple will be false. We can do it like this:

let isPerfectMultiple = result == 0

The double equals sign compares the two and returns a boolean. The single equals sign takes what's on the right of it and puts it in what's on the left of it.