How Can JavaScript Detect Browser Tab Activity?

Determining Browser Tab Activity with JavaScript

In web development, it's often desirable to detect whether a browser tab is actively in use. This capability allows efficient resource allocation by pausing or optimizing tasks when the tab is in the background.

One method to determine tab activity is through the Page Visibility API. This API provides a simple Boolean property, document.hidden, that indicates the visibility state of the page. Tabs that are not hidden (i.e., document.hidden === false) are considered active.

if (!document.hidden) {
    // Execute tasks if the tab is active
}

The Page Visibility API is supported by all major browsers and provides a reliable way to detect tab activity.

Additional Resources:

• [Page Visibility in Web Applications](https://developer.mozilla.org/en-US/docs/Web/API/Page_Visibility_API)
• [Using the Page Visibility API to Pause or Resume Videos](https://www.w3.org/TR/page-visibility/)
• [Determining Visibility State in JavaScript](https://davidwalsh.name/page-visibility)

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