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

Derrick Rodriguez
Derrick Rodriguez
490 Points

Swift 2.0 Basics Working with operators challenge task 1 of 2 Keep getting caught up on this error

Question -For the first task, we're going to keep it pretty simple and check if we know how to use the remainder and equality operators. 
In the editor below, you have two constants - value and divisor. Step 1: Using the remainder operator, compute the remainder given the value and a divisor. Assign this value to a constant named result. 
Step 2: When value obtained using a remainder operator is 0, this means that the value is a perfect multiple of the divisor. Compare the value of result to 0 using the equality operator and assign the resulting value to a constant named isPerfectMultiple. 
Submit your answer after you've completed both steps 1 and 2.

My code

let value = 200
let divisor = 5

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

// Task 1 - 
let result = value % divisor

// Task 2 -
let isPerfectMultiple = 0
isPerfectMultiple == result

Error is keep getting-

The value assigned to isPerfectMultiple should be the result of a comparison operation

operators.swift
// 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
let isPerfectMultiple = 0
isPerfectMultiple == result

2 Answers

Michael Hulet
Michael Hulet
47,912 Points

The question is asking you to look at the value in result and see if it is 0, and then assign the result to isPerfectMultiple. Since the question "Is result equal to 0?" has an answer of either yes or no, isPerfectMultiple should contain a Bool for the answer. Overall, the solution looks like this:

let isPerfectMultiple = result == 0 //Check if result is 0, and assign true or false to isPerfectMultiple
Derrick Rodriguez
Derrick Rodriguez
490 Points

Hey thanks Micheal appreciate the quick response, thanks for explaining it in more depth for me!

// 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 let result = value % divisor

// Task 2 let isPerfectMultiple = result == 0