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SOLVED: Day 16 -- Modifying program state

Forums > 100 Days of SwiftUI

Hi again

Friends, someone explain me why I need the self. in this example please.

The code seems to work pretty well without it.

struct ContentView: View {
    @State var tapCount = 0

    var body: some View {
        Button("Tap Count: \(tapCount)") {
            self.tapCount += 1
        }
    }
}

3      

Hi @gaspar-d,

You don't now, but when the tutorial was written you did. The Swift Community as a whole decided to change the need for using self in a closure in a struct - that it was actually a bug - and it has now been rectified. I do remember at some point that Paul had mentioned it, saying that perhaps by the time you are watching the video you won't kneed it aymore - but can't remember what day it was.

For moe info, you can google it. I pulled up this quick link: https://www.swiftbysundell.com/tips/implicit-capturing-of-self/

4      

Wow, now that you mention this I remember Paul saying it too.

Well better safe than sorry haha

Thanks for your reply

4      

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