merge - 2

RxJS 5 merge

HTML

<script src="https://npmcdn.com/@reactivex/rxjs@5.0.0-beta.8/dist/global/Rx.umd.js"></script>

JavaScript

Rx.Observable.fromEvent(document, 'click')
.filter(function(c) { return c.clientX > window.innerWidth / 2; })
.take(10)
.subscribe(function(c) { console.log(c.clientX, c.clientY) })