The screen.orientation.lock() method prevents changes to the screen orientation, typically in fullscreen applications such as games. For example, while locked, rotating a phone to the side won't change the screen orientation from landscape to portrait.

Learning resources on MDN

• ScreenOrientation: lock() method
• ScreenOrientation: unlock() method

Browser support

• Chrome ❌
• Chrome Android 38 Released on 2014-10-08
• Edge ❌
• Firefox ❌
• Firefox for Android ❌
• Safari ❌
• Safari on iOS ❌

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