iOS WebView All In One
WKWebView / UIWebView
//: A UIKit based Playground for presenting user interface
import PlaygroundSupport
import UIKit
impo ......
Swift Playground All In One
Swift 5.3
Playgrounds in Xcode
Xcode 11.5
https://developer.apple.com/videos/play/wwdc2018/402/
Learn to Code with Swift P ......