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<html><body><h2>Use select() to select the content of an Email Field</h2>E-mail: <input type="email" id="myEmail" value="john@example.com"><p>Click the button to select the content of the email field.</p><button type="button" onclick="myFunction()">Try it</button><script>function myFunction() { document.getElementById("myEmail").select();}</script></body></html>