CODEWITHSUNDEEP
iosswift
Hadevs Play
Hadevs Play

Reputation: 71

if for return value of NSObject in Swift

Here is my code: 

func onDoubleTap(sender:AnyObject) {
var StringBool = Swapper.getSwapperValue
if StringBool == "false"{...}

Swapper is another class, subclassing NSObject. getSwapperValue is function, which returns a false value of variable. But with this code, I get an error: Binary operator '==' cannot be applied to operands of type 'Swapper -> () -> NSString' and 'String'

Upvotes: 0

Views: 412

Answers (2)

JeremyP
JeremyP

Reputation: 86651

Looking at the error message

'Swapper -> () -> NSString' and 'String'

The type of the right side of == is String, the type of the left side is Swapper -> () -> NSString which is a function type - not a string of any sort. Functions in Swift are first class types which means you can treat them like an ordinary variable and my guess is that that is what you are doing - Swapper.getSwapperValue is a function not a property. Try writing 

var stringBool = Swapper.getSwapperValue()

or if Swapper is a class and getSwapperValue is not a class function

var stringBool = Swapper().getSwapperValue()

Upvotes: 1

Hadevs Play
Hadevs Play

Reputation: 71

So, i resolved my problem here:

I created a variable in NSObject class named swapper1.

and here's my code: var swapa = Swapper().swapper1 and convert same.

Upvotes: 0

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