Understanding RxJS/ Observables
Understand Observables and how to use them
HTML
<script src="https://unpkg.com/@reactivex/[email protected]/dist/global/Rx.js"></script>
<button>Click me</button>
JavaScript
var button = document.querySelector('button');
Rx.Observable.fromEvent(button, 'click')
.subscribe(
(value) => console.log(value.clientX)
);