ScreenDetailed: availLeft property
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The availLeft
read-only property of the
ScreenDetailed
interface is a number representing the x-coordinate (left-hand edge) of the available screen area inside the OS virtual screen arrangement, relative to the multi-screen origin.
This is equal to the ScreenDetailed.left
property, plus the width of any OS UI element drawn on the left of the screen. Windows cannot be placed in those areas, so availLeft
is useful for giving you the left boundary of the actual area available to open or place windows.
Note: A non-standard implementation of the availLeft
property is available on the Screen
interface in all browsers. See the Non-standard example below for usage details, and see the Screen
reference page for browser support information relating to the non-standard implementation.
Value
A number.
Examples
Window Management API example
// Available in browsers that support the Window Management API
const screenDetails = await window.getScreenDetails();
// Return the availLeft value of the first screen
const screen1AvailLeft = screenDetails.screens[0].availLeft;
Non-standard example
// Available in all browsers
// Return the availLeft value of the current screen
const screenAvailLeft = window.screen.availLeft;
Specifications
Specification |
---|
Window Management # ref-for-dom-screendetailed-availleft |
Browser compatibility
BCD tables only load in the browser