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<html><body><h1>The Element Object</h1><h2>The hasAttribute() Method</h2><button id="myBtn" onclick="myFunction()">BUTTON</button><p>Does the button have an onclick attribute:</p><p id="demo"></p><script>const myButton = document.getElementById("myBtn");let answer = myButton.hasAttribute("onclick");document.getElementById("demo").innerHTML = answer;</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_element_hasattribute by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:44 GMT --></html>