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iOS Swift 2.0 Collections and Control Flow Control Flow With Conditional Statements Working with Logical Operators

William Lee
William Lee
1,316 Points
Posted by William Lee
William Lee
1,316 Points

Unsure why my code is incorrect.

.

logicalOperators.swift 
var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if !n%2 && n/7 {
    results.append[n]
    }
    // End code 
}

2 Answers

Michael Reining
Michael Reining
10,101 Points
Michael Reining
Michael Reining
10,101 Points

Hi William,

The syntax in your code is wrong.

In the if statement you have to break it down a little more.

Step 1: write down what you are calculating such as n% 2 Step 2: Test the condition so that it evaluates to true or false

In the example we have this

n%2 != 0 // If the remainder is not zero, then we have an odd number
n%7 == 0 // if the remainder is zero, then we have a number that can be divided by 7

var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if n%2 != 0 && n%7 == 0 {
        results.append(n) // use the round brackets
    }
    // End code
}

I hope that helps,

Mike

PS: Thanks to the awesome resources on Team Treehouse, I launched my first app.

Now you can practice writing Swift code directly on your iPhone :-)

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William Lee
William Lee
1,316 Points
William Lee
William Lee
1,316 Points

Thanks for the help Mike! Much appreciated :)