Edit The Code:
See Result »
Try it Yourself - ©
w3ii.com
<!DOCTYPE html> <html> <body> Password: <input type="password" id="myPsw" value="thgrt456"> <p>Click the button to select the content of the password field.</p> <button type="button" onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("myPsw").select(); } </script> </body> </html>