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<!DOCTYPE html> <html> <body> <h1>The Element Object</h1> <h2>The setAttribute() Method</h2> <a id="myA" href="https://w3schools.org.cn" target="_blank">W3schools</a>. <p>Click "Change" to change the link target to "_self_".</p> <button onclick="myFunction()">Change</button> <p>Try clicking the link before and after "Change".</p> <script> function myFunction() { const element = document.getElementById("myA"); if (element.hasAttribute("target")) { element.setAttribute("target", "_self"); } } </script> </body> </html>