requestFullscreen

The requestFullscreen function requests an element to enter fullscreen mode in the browser.

Syntax

requestFullscreen(element?: HTMLElement): void;

Parameters

Name	Type	Description
element	HTMLElement	(optional) Element to display in fullscreen. If not provided, uses the body.

Returns

Name	Type	Description
–	void	Does not return a value

Examples

requestFullscreen();
// Requests fullscreen for the body

const el = document.getElementById("video");
requestFullscreen(el);
// Requests fullscreen for the "video" element

Notes

• May not work in all browsers or contexts.
• Useful for videos, presentations, and immersive experiences.

References

• https://developer.mozilla.org/en-US/docs/Web/API/Element/requestFullscreen