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<!DOCTYPE html> <html> <body> <p>This example demonstrates how to assign an "oninput" event to an input element.</p> <p>Write something in the text field to trigger a function.</p> Enter name: <input type="text" value="Mickey" oninput="myFunction()"> <script> function myFunction() { alert("The value of the input field was changed."); } </script> </body> </html>