DOM-events can be listened by without an emitterName. By using the `filter`-argument you specify which node to listen to. Because the filter (selector) is a String, we can pass it as 3rd parameter.
Click on the Show popup
to to show a pop-up.
Code-example:
<body>
<button id="buttongo" class="pure-button pure-button-primary pure-button-bordered">Show popup</button>
</body>
<script src="itsabuild-min.js"></script>
<script>
var showMsg = function(e) {
alert('Button was clicked');
console.log(e);
};
ITSA.Event.after('tap', showMsg, '#buttongo');
</script>