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<!DOCTYPE html> <html> <body> <h1>Event timeStamp</h1> <p>Click the button to get the number of milliseconds from this document was loaded until the button was clicked.</p> <button onclick="myFunction(event)">Click me!</button> <p>Time since this document was loaded: <span id="demo"></span></p> <script> function myFunction(event) { var n = event.timeStamp; document.getElementById("demo").innerHTML = n; } </script> </body> </html>
