Javascript DOM MouseEvent screenY Property

Introduction

Get coordinates of the mouse pointer, relative to the screen, when the mouse button is clicked on an element:

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<!DOCTYPE html>
<html>
<body>
<h2 onclick="showCoords(event)">Click this heading to get the x and y coordinates of 
the mouse pointer, relative to the screen,
when it is clicked.</h2>
<p id="demo"></p>

<script>
function showCoords(event) {//ww w .j av  a  2 s .  c  o  m
  var x = event.screenX;
  var y = event.screenY;
  var coords = "X coords: " + x + ", Y coords: " + y
  document.getElementById("demo").innerHTML = coords;
}
</script>

</body>
</html>

The screenY property returns the vertical coordinate to the users computer screen of the mouse pointer when an event was triggered.

This property is read-only.

The screenY property returns a Number representing the vertical coordinate of the mouse pointer in pixels.




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