import SwiftUI

struct SpacingComparison: View {
  private let numbers = Array(0..<10)
  
  var body: some View {
    HStack(spacing: 20) {
      VStack(spacing: nil) {
        Text("spacing: nil")
        ForEach(numbers, id: \.self) { i in
          makeDemoRectangle(number: i)
        }
      }
      VStack(spacing: 0) {
        Text("spacing: 0")
        ForEach(numbers, id: \.self) { i in
          makeDemoRectangle(number: i)
        }
      }
    }
  }
  
  private func makeDemoRectangle(number: Int) -> some View {
    Rectangle()
      .frame(height: 20)
      .overlay { Text("\(number)") }
  }
}

#Preview {
  SpacingComparison()
}