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<html><!DOCTYPE html> <html> <head> </head> <body> <p>Click the button to execute the <em>displayDate()</em> function.</p> <button id="myBtn">Try it</button> <script> document.getElementById("myBtn").onclick=function(){displayDate()}; function displayDate() { document.getElementById("demo").innerHTML=Date(); } </script> <p id="demo"></p> </body> </html>