How to set a metric target for buttons with the same class?

Question

JavaScript

There are many buttons on the site with the same .button-submit class, I want to put an onclick metric event on them, but the code that displays these buttons is somewhere in the wilds of files.

I would like some kind of script that can be thrown, for example, in the header and not look for the button output code

Answer 1

$('body').on('click', '.button-submit', function () {
   // код
});

Answer 2

Try google tag manager.