How to Get Screen Resolution in JavaScript: A Comprehensive Guide

Determining Screen Resolution with JavaScript

Detecting screen resolution is essential for optimizing website display and user experience. In JavaScript, there are methods that work across various browsers to retrieve this information.

One approach is to utilize the following properties:

• window.screen.availHeight for available height
• window.screen.availWidth for available width

These properties provide the viewable area of the display, excluding elements like browser toolbars and side panels.

For a more comprehensive resolution measurement, you can also use:

• window.screen.height for absolute height
• window.screen.width for absolute width

To account for device pixel ratio on mobile devices, multiply these values with window.devicePixelRatio. This ensures accuracy regardless of display density.

Regardless of the method you choose, these JavaScript properties offer a reliable way to determine screen resolution and optimize your web application accordingly.

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