JSFiddle - React, Tailwind, and code Playground

HTML

<a href="javascript:alert('alert');" id="foo">link</a>

       <form id="bar" action="javascript:alert('form submitted');" id="foo">
            <input type="submit" />
</form>

JavaScript

$('a').mousedown(function(){
    alert('mousedown');
});
$('a').keydown(function(e){
    if(e.which===13)
    alert('keydown');
});

$('form').mousedown(function(){
    alert('form mousedown');
});
$('form').keydown(function(e){
    if(e.which===13)
    alert('form keydown');
});