Document.onvisibilitychange

The Document.onvisibilitychange property represents the event handler that is called when a visibilitychange event reaches this object.

Syntax

obj.onvisibilitychange = function;

function is the name of a user-defined function, without the () suffix or any parameters, or an anonymous function declaration.

document.onvisibilitychange = function() { 
  console.log("Visibility of page has changed!");
};

Specification	Status	Comment
Page Visibility (Second Edition) The definition of 'onvisibilitychange' in that specification.	Recommendation	Initial definition.

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`onvisibilitychange`	Chrome Full support 33 Full support 33 Full support 13 Prefixed Prefixed Implemented with the vendor prefix: webkit	Edge Full support 18	Firefox Full support 56	IE Full support 10	Opera Full support 12.1 Notes Full support 12.1 Notes Notes Doesn't fire the `visibilitychange` event when the browser window is minimized, nor when `hidden` is set to true.	Safari Full support 7	WebView Android Full support 4.4.3	Chrome Android Full support 33	Firefox Android Full support 56	Opera Android Full support 12.1 Notes Full support 12.1 Notes Notes Doesn't fire the `visibilitychange` event when the browser window is minimized, nor when `hidden` is set to true.	Safari iOS Full support 7	Samsung Internet Android ?

Full support: Full support
Compatibility unknown: Compatibility unknown
See implementation notes.: See implementation notes.
Requires a vendor prefix or different name for use.: Requires a vendor prefix or different name for use.