Getting error on ForEach when trying to show array

Question

I have a method that gets a random word from an array and converts it into an array of letters, I'm trying to show each letter using ForEach but I get this error.

Cannot convert value of type '[Any]' to expected argument type 'Binding<C‎>'

var gameLetters = ContentView.getLetters()

...

ForEach(gameLetters) { letter in   //error here
        Text(letter)
}

This is the method

static func getLetters() -> Array<Any> {
    let allWords = WordList.wordList
    let randomWord : String! = allWords.randomElement()
    let letters = Array(randomWord)
    return letters
}

If there is any thing I need to elaborate in please tell me.

can you print first your gameLetters and check is there any nil — Muhammad Shauket
– Muhammad Shauket, Commented Dec 7, 2021 at 9:37
you can try this to print gameLetters gameLetters.forEach { print($0) } — Muhammad Shauket
– Muhammad Shauket, Commented Dec 7, 2021 at 9:40

Marcio · Accepted Answer · 2021-12-07 09:45:55Z

1

Compiler is not happy because Any doesn't conform to protocols Hashable or Identifiable.

Changing getLetters declaration to

static func getLetters() -> Array<Character> {
    let allWords = WordList.wordList
    let randomWord : String! = allWords.randomElement()
    let letters = Array(randomWord)
    return letters
}

will allow the compiler to understand that the return of getLetters() is an array of Characters (Characters conform to Hashable)

You also need to change the ForEach to

ForEach(gameLetters, id: \.self) { letter in
    Text(String(letter))
}

answered Dec 7, 2021 at 9:45

Marcio

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