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<html><body><h1>The Window Object</h1><h2>The moveBy() Method</h2><p>Open "myWindow" and move the new window 250px relative to its current position:</p><button onclick="openWin()">Open "myWindow"</button><button onclick="moveWin()">Move "myWindow"</button><script>let myWindow;function openWin() { myWindow = window.open("", "", "width=400, height=400");}function moveWin() { myWindow.moveBy(250, 250);}</script></body></html>