Manuel M T Chakravarty mchakravarty
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| infix operator ?! { } | |
| func ?!<A>(v: A?, msg: String) -> A { | |
| if let v = v { | |
| return v | |
| } else { | |
| println(msg) | |
| exit(1) | |
| } | |
| } |
mchakravarty
/ CountingEditorApp.swift
Created
September 9, 2020 13:50
SwiftUI AttributeGraph cycle in playground only
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| // Put this into an Xcode 12.0 multiplatform app | |
| import SwiftUI | |
| struct ContentView: View { | |
| @State var text = "Hello!" | |
| var body: some View { | |
| VStack { | |
| TextEditor(text: $text) |
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