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<!DOCTYPE html> <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 src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/edibu.js"></script> <script src="https://www.comfortsoftwaregroup.com/web/webmastertoolbag/tongji.js"></script></body> </html>