switch (screen.orientation.type) {
  case "landscape-primary":
    console.log("That looks good.");
    break;
  case "landscape-secondary":
    console.log("Mmm… the screen is upside down!");
    break;
  case "portrait-secondary":
  case "portrait-primary":
    console.log("Mmm… you should rotate your device to landscape");
    break;
  default:
    console.log("The orientation API isn't supported in this browser :(");
}