Window: fullScreen property
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
ThefullScreen property of theWindowinterface indicates whether the window is displayed in full screen mode or not.
Value
A boolean value withtrue meaning that the window is in full-screen mode andfalse meaning it isn't.
Notes
- Switching between regular window and full screen will fire the "resize" event on thecorresponding window.
Examples
js
if (window.fullScreen) { // it's fullscreen!} else { // not fullscreen!}