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Gets the y-coordinate of the mouse pointer, relative to the upper-left corner of the screen.

Property of dom/MouseEventdom/MouseEvent


Note: This property is read-only.

var yCoordinate = event.screenY;

Return Value

Returns an object of type NumberNumber

The Y coordinate of the mouse cursor.


Screen coordinates depend on document zoom level. At 200% magnification, some user agents may report the “logical” position of a pixel as half of the distance of the same position at 100% zoom.

Related specifications

DOM Level 3 Events
Working Draft