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iOS Generics in Swift Generic Types Creating a Generic Type

Ingo Ngoyama
Ingo Ngoyama
4,882 Points

cant formulate the bool

cant seem to figure how to express the boolean expression on this one.

struct Queue<Element> {

     var array: [Element] = []

     var isEmpty: Bool {
           for question in array{
                if question = 0{
                    return true
                }
           }
     }
}

One thing that I've noticed (I've not done this course so can't answer, sorry) is that you're assigning into question using a single-equals, rather than comparing using a double-equals.

So changing your line to:

if question == 0 {

}

would be creating the conditional statement you intend.

Sorry I can't help any further, though - good luck!

Steve.

1 Answer

Jeff McDivitt
Jeff McDivitt
23,970 Points

You do not need to use the word question, you are just asking if the array is empty. Also you need to use the ==

struct Queue<Element> {

    var array: [Element] = []

  var isEmpty: Bool {
        if array.count == 0 {
            return true
        } else {
            return false
        }
    }

}