Baseline Widely available
The submit event fires when a <form> is submitted.
Note that the submit event fires on the <form> element itself, and not on any <button> or <input type="submit"> inside it. However, the SubmitEvent which is sent to indicate the form's submit action has been triggered includes a submitter property, which is the button that was invoked to trigger the submit request.
The submit event fires when:
form.requestSubmit() methodHowever, the event is not sent to the form when a script calls the form.submit() method directly.
Note: Trying to submit a form that does not pass validation triggers an invalid event. In this case, the validation prevents form submission, and thus there is no submit event.
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("submit", (event) => { })
onsubmit = (event) => { }
In addition to the properties listed below, this interface inherits the properties of its parent interface, Event.
submitter Read only
An HTMLElement object which identifies the button or other element which was invoked to trigger the form being submitted.
This example uses EventTarget.addEventListener() to listen for form submit, and logs the current Event.timeStamp whenever that occurs, then prevents the default action of submitting the form.
<form id="form">
<label>Test field: <input type="text" /></label>
<br /><br />
<button type="submit">Submit form</button>
</form>
<p id="log"></p>
function logSubmit(event) {
log.textContent = `Form Submitted! Timestamp: ${event.timeStamp}`;
event.preventDefault();
}
const form = document.getElementById("form");
const log = document.getElementById("log");
form.addEventListener("submit", logSubmit);
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