JS Storage Object JavaScript Window Object

Window screenX property

screenXa read-only property that returns the horizontal distance from the left edge of the user's browser window to the left edge of the screen (in pixels).

The screenX property is a newerscreenLeftalias of the property.

Syntax:

window.screenX

Example

var win = window.open("", "popupWindow");
win.document.write("<p>This　is　'popupWindow'");
win.document.write("<br>ScreenX:　"　+　win.screenX);
win.document.write("<br>ScreenY:　"　+　win.screenY　+　"</p>

Test and See‹/›

Note: The screenX and screenY properties are equal to the screenLeft and screenTop properties.

Browser compatibility

All browsers fully support the screenX property:

property
screenX	is	is	is	is	is

Technical details

Return Value:	This number is equal to the number of CSS pixels from the left edge of the browser viewport to the left edge of the screen

More Examples

Return the x and y coordinates of the new window relative to the screen:

Example

var win = window.open("", "popupWindow", "left=500, top=350, width=300, height=200");
win.document.write("<p>This　is　'popupWindow'");
win.document.write("<br>ScreenX:　"　+　win.screenX);
win.document.write("<br>ScreenY:　"　+　win.screenY　+　"</p>

Test and See‹/›

Related References

Reference: Window (Window)window.screenY property

Reference: Window (Window)window.screenTop property

Reference: Window (Window)window.screenLeft property

JavaScript Window Object