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Anchor username 属性
tryjsref_anchor_username2
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<!DOCTYPE html> <html> <body> <p><a id="myAnchor" href="https://johnsmith:smith123@www.example.com">Example link</a></p> <p>Click the button to change the username part of the link above.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { document.getElementById("myAnchor").username = "newUsername"; document.getElementById("demo").innerHTML = "The username was changed from ''johnsmith'' to ''newUsername''."; } </script> </body> </html>