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<html><body><h1>The Window Object</h1><h2>The screenX and screenY Properties</h2><button onclick="myFunction()">Open Window</button><p id="demo"></p><script>function myFunction() {const myWin = window.open("", "", "width=200, height=100");let x = myWin.screenX;let y = myWin.screenY;document.getElementById("demo").innerHTML ="myWin.screenX= " + x + "<br>myWin.screenY= " + y; }</script></body></html>