When the event is triggered, the screenY mouse event returns the vertical coordinate of the mouse pointer.
Example
You can try running the following code to learn how to implement the screenY mouse event in JavaScript.
<!DOCTYPE html>
<html>
<body>
<p onclick = "coordsFunc(event)">Click here to get the x (horizontal) and y (vertical) coordinates of the mouse pointer.</p>
<script>
function coordsFunc(event) {
var x_coord = event.screenX;
var y_coord = event.screenY;
var xycoords = "X coords= " + x_coord + ", Y coords= " + y_coord;
document.write(xycoords);
}
</script>
</body>
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