How to make alert pop up when forum is submited

Question

how to pop up an alert when the user fill the forum informations and click on submit

Answer 1

Use the onsubmit method.
form.onsubmit = () => {
window.alert("That's how it's done ")
}

Answer 2

Perfect!!

Answer 3

HTML:
<form>
...
<input type="submit" value="submit" onclick="fun()"/>
</form>
JS:
function fun() {
alert("hi");
}

Answer 4

Ouardi Yacine tell me if it works

Answer 5

thanks I'll try it

Answer 6

Tell me if it works

Answer 7

it didn't

Answer 8

it did thanks

Answer 9

Please my answer the best,because I helped you!

Answer 10

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Answer 11

done

Answer 12

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