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Day 34 - A simple problem

Forums > 100 Days of SwiftUI

Hello everyone!

I messed up the code from the flag project too much, so I created a new application from scratch.

What do I have to do to make it work? When my code looks like this: "@State private var playerChoose = "" "

ForEach(0..<3) { number in
        Button {
          playerChoose == emoji[number] // RESULT OF OPERATOR '==' IS UNUSED

If I change "@State private var playerChoose = Int()" -> I get this error: Binary operator '==' cannot be applied to operands of type 'Int' and 'String'

So here is my code.

import SwiftUI

struct EmojiView: View {
    @State private var emoji = ["๐Ÿ", "๐ŸŽ", "๐Ÿ", "๐ŸŠ", "๐Ÿ‹"]
    @State private var random = Int.random(in: 0...2)

    @State private var playerChoose = ""
    @State private var spinArround = 0.0
    @State private var opacity = 1.0

    var body: some View {
        VStack {

            HStack {
                ForEach(0..<3) { number in
                    Button {
                        playerChoose == emoji[number]  // RESULT OF OPERATOR '==' IS UNUSED
                        opacity -= 0.75
                        spinArround += 360

                    } label: {
                        playerChoose == emoji[number]  ?
                            .rotation3DEffect(.degrees(spinArround), axis: (x: 0, y: 1, z: 0))

                            .rotation3DEffect(.degrees(0), axis: (x: 0, y: 1, z: 0))


You should use " playerChoose = emoji[number] ", the " = " ( not the " == " ) is the right way to run the code. And there is no animation in your code, so you should add " withAnimation { } " into the button action where you set the value of opacity and spinArround.

Button {
    playerChoose = emoji[number]
    withAnimation {
        opacity -= 0.75
        spinArround += 360


@Giant is correct.

// == means Are these two elements the same?
if playersSelection == emoji[number] {  // <-- Are these the same?
     print("They are the same!")

// = means Assign this to that.
playersSelection = emoji[number]  // <-- Players selection gets a new value


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