Screen.orientation

The orientation read-only property of the Screen interface returns the current orientation of the screen.

Syntax

var orientation = window.screen.orientation;

Return value

An instance of ScreenOrientation representing the orientation of the screen.

Example

var orientation = screen.msOrientation || (screen.orientation || screen.mozOrientation || {}).type;

if (orientation === "landscape-primary") {
  console.log("That looks good.");
} else if (orientation === "landscape-secondary") {
  console.log("Mmmh... the screen is upside down!");
} else if (orientation === "portrait-secondary" || orientation === "portrait-primary") {
  console.log("Mmmh... you should rotate your device to landscape");
} else if (orientation === undefined) {
  console.log("The orientation API isn't supported in this browser :("); 
}

Specifications

Browser compatibility

See also

• Screen.unlockOrientation()
• Screen.onorientationchange
• Managing screen orientation