Document.hidden

Document.hidden （只读属性）返回布尔值，表示页面是（true）否（false）隐藏。

语法

var string = document.hidden

document.addEventListener("visibilitychange", function() {
  console.log( document.hidden );
  // Modify behavior...
});

Specification	Status	Comment
Page Visibility (Second Edition) Document.hidden	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
`hidden`	Chrome Full support 33 Full support 33 Full support 13 Prefixed Prefixed Implemented with the vendor prefix: webkit	Edge Full support 12	Firefox Full support 18 Notes Full support 18 Notes Notes Since Firefox 56 it also returns `true` on Mac when the window is completely hidden by another non-translucent application. No support 10 — 52 Prefixed Prefixed Implemented with the vendor prefix: moz	IE Full support 10	Opera Full support 12.1	Safari Full support 7	WebView Android Full support Yes	Chrome Android Full support 33 Full support 33 Full support Yes Prefixed Prefixed Implemented with the vendor prefix: webkit	Firefox Android Full support 18 Notes Full support 18 Notes Notes Since Firefox 56 it also returns `true` on Mac when the window is completely hidden by another non-translucent application. No support 10 — 52 Prefixed Prefixed Implemented with the vendor prefix: moz	Opera Android Full support 12.1	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.