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Exit from fullscreen mode on click in JavaScript

How to exit from fullscreen mode on click in JavaScript?
const exitBtn = document.getElementById('exit-btn');

exitBtn.addEventListener('click', ()=>{
    if (document.fullscreenElement) {

To exit from a full-screen mode using vanilla JavaScript use the exitFullscreen method. The Document method exitFullscreen() requests that the element on this document which is currently being presented in full-screen mode be taken out of full-screen mode, restoring the previous state of the screen.

Before calling exitFullscreen check if there is any element in full-screen mode to avoid errors using if (document.fullscreenElement)

Also, note that you need to call exitFullscreen on the document and not on the element


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