How to concatenate specific String from Array ? [SwiftUI]

Question

I have an array :

struct Main: Identifiable {
    var id = UUID()
    var value: String
    var type: String
}
var mainArray = [Main]()

And I need to output the "var value" of each of the elements which are in this array into a Text("")

Like : Text("(main[index].value)")

But I don't know the correct way of doing that

Also, I wiil need to be able to tweak the value I get with a function like :

func readMain() -> String {
        if main[index].value == "specificContent" { return "Correct" }
        else { return "Incorrect"}
    }

And then add my Text(readMain()) but that return all the values from the array like : Text("Correct, Incorrect, Incorrect, Correct, Correct")

Any idea ?

Thanks in advance !

Answer 1

I think you are looking for something like this:

@State private var mainArray = [Main]()

var body: some View {
    ForEach(mainArray) { main in
        Text(
            main.value == "correctValue" ?
            "Correct" :
            "Incorrect"
        )
    }
}

This prints whether the value property (of each Main element in you mainArray) is "correct" seperately.

If you want, though, your text to appear in one line with a space character separating the different mainArray values you could do this:

@State private var mainArray = [Main]()

var body: some View {
    Text(
        mainArray
            .map {
                $0.value == "correctValue" ?
                    "Correct" :
                    "Incorrect"
            }
            .joined(separator: " ")
    )
}

In the above sample the mainArray is converted into an string array containing a description of whether the values are "correct" and then these values are joined into one string with the space character (" ") separating them.