Please help, javascript question?

Question

I want to understand how to make apply function, like in indeed website. When you click on button of apply now it appears a window where you can apply, after it disappears . Can you please show me some example? Thank you very much

Answer 1

you would understand by doing the js course...

roughly, a html button to pop-up a message:

<input type="button" value="pop-up" onclick="alert('pop-up message');">