Replace Binding<String?> by String? for read-only access

[gobetti]

I'm super new to SwiftUI so I may have understood it wrong, anyway I found that opening a PR might be the fastest way to answer my question. This project still works for me after these changes - my badge still updates fine if I make it a let (immutable read-only) instead of passing in a Binding. https://swiftuipropertywrappers.com seems to suggest that approach when write access isn't needed.

Are there scenarios where Binding is needed here?

Thank you!

PS.: the practical reason why I didn't want to inject a Binding was that I wanted the badge to be computed from an @EnvironmentObject instead of having yet another property (probably a @State) that replicates part of that information.

struct AppView: View {
    @EnvironmentObject var myObject: MyObject

    var body: some View {
        StatefulTabView {
            Tab(title: "Foo", systemImageName: "0.circle", badgeValue: "\(myObject.items.count)") { // SwiftUI knows it needs to update this when myObject changes, if I had to inject a Binding how would I do it without creating a new property?
                MyView()
            }
        }
    }
}

class MyObject: ObservableObject {
  @Published var items = [MyItem]()
}

[NicholasBellucci]

I think you are correct with this approach as the Tab shouldn't need to ever directly change the value. PR looks good to me so I will go ahead and merge.