Window screenLeft

Return the x and y coordinates of the window:

let x = window.screenLeft;
let y = window.screenTop;

Description

The screenLeft property returns the x (horizontal) position of a window, relative to the screen.

window.screenLeft

Type	Description
A number	The x (horizontal) position of the window relative to the screen, in pixels.

window.screenLeft is supported in all modern browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	11

window.screenLeft was not supported in Firefox before version 64 (Nov 2018).