JS WINDOW OBJECT PROPERTY
Run
<!doctype html>
	<head>
		<title>JS Window object properties</title>
	</head>
	<body>
		<h3>Create a Window by clicking</h3>

        <button onclick="createWindow()">Open a Window</button>
        
        <script>
            function createWindow() {
                  var win = window.open("", "My Window", "width=500, height=200,screenX=100,screenY=100");
                  // window properties
                  var isclose = win.closed;
                  var name = win.name;
                  // writing in the current document
                  document.write(isclose +"<br>");
                  document.write(name +"<br>");
                  document.write(win.screenY +"<br>");
                  document.write(win.screenX +"<br>");
                  // we can access the new window document like this
                  win.document.write("Hello World!");
            }
        </script>

	</body>
</html>