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

Posted by sterlingpitt
sterlingpitt
492 Points

What am I missing here?

Did I miss something or did I misunderstand what it is asking me to do?

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

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

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

stephanie, if you check the error message in Preview you will see this:

swift_lint.swift:9:31: error: '!=' is not a prefix unary operator
    if (n % 7 == 0) && (n % 2 !=0)

what it's trying to say is that it has a problem with !=0. What it wants is != 0. If there isn't a space before the second operand it thinks you are asking it to use ! as a unary operator (sort of like the - in -x). So if you just change it to the following you will be fine:

if (n % 7 == 0) && (n % 2 != 0)