So lets say I have an array of rectangles:

var myArray = [Rectangle()]

this array has say, four elements, so myArray[0] to myArray[3], each is drawn on screen in a view

each of those rectangles has an .onTapGesture {} method how would I, with the .onTapGesture get the index of the rectangle I am clicking on? So if Im clicking on the rectangle that is myArray[1], how do i get that index?

code for building the array:

func buildRectArray(arraySize: Int) -> [Rectangle] {
    var theRectArray = [Rectangle()]
    let theCounter = arraySize * arraySize - 1
    for i in 1...theCounter {
        theRectArray.append(Rectangle())
    }
    return theRectArray
}

code for showing the array:

Grid (horizontalSpacing: 0, verticalSpacing: 0) {
            ForEach(0..<gridSize, id: \.self) { row in
                GridRow{
                    ForEach(0..<gridSize, id: \.self) { col in
                        GeometryReader { proxy in
                            thisArray[aCount]
                             .foregroundColor(.gray)
                             .overlay(Text("\(row) \(col)"))
                             .border(Color.black)
                             .bold()
                             .onTapGesture {
                                 //this is where I want it to get the index of itself
                             }
                             .onAppear(perform: {
                                     aCount += 1
                             })
                        }
                    }
                }
            }
        }

See you answer in your other post increment an integer in a ForEach loop