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<html><body><p>When you submit the form, a function is triggered which alerts some text.</p><form action="https://www.w3schools.com/action_page.php" onsubmit="myFunction()"> Enter name: <input type="text" name="fname"> <input type="submit" value="Submit"></form><script>function myFunction() { alert("The form was submitted");}</script></body><!-- Mirrored from www.w3schools.com/tags/tryit.asp?filename=tryhtml5_ev_onsubmit by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:34:18 GMT --></html>