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<html><body><h1>The Element Object</h1><h2>The getAttributeNode() Method</h2><p>Click the button to display the value of the onclick attribute node of the button element.</p><button id="myBtn" onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { var elmnt = document.getElementById("myBtn"); var attr = elmnt.getAttributeNode("onclick").value; document.getElementById("demo").innerHTML = attr;}</script></body></html>