Intro to Rx

An example of a "Who to follow" suggestions box built with the Reactive Programming library RxJS.

HTML

<div class="container">
    <div class="header">
         <h2>Who to follow</h2><a href="#" class="refresh">Refresh</a>
    </div>
    <ul class="suggestions">
        <li class="suggestion1">
            <img />
            <a href="#" target="_blank" class="username">this will not be displayed</a>
            <a href="#" class="close close1">x</a>
        </li>
        <li class="suggestion2">
            <img />
            <a href="#" target="_blank" class="username">neither this</a>
            <a href="#" class="close close2">x</a>
        </li>
        <li class="suggestion3">
            <img />
            <a href="#" target="_blank" class="username">nor this</a>
            <a href="#" class="close close3">x</a>
        </li>
    </ul>
</div>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.2.26/rx.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.2.26/rx.async.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.2.26/rx.coincidence.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.2.26/rx.binding.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs/2.2.26/rx.time.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/rxjs-dom/2.0.7/rx.dom.js"></script>

CSS

body {
    font-family: sans-serif;
    padding: 10px;
}
h2 {
    font-weight: bold;
    display: inline-block;
}
.refresh {
    font-size: 80%;
    margin-left: 10px;
}
.header {
    background: #ECECEC;
    padding: 5px;
}
.suggestions {
    border: 2px solid #ECECEC;
}
li {
    padding: 5px;
}
li img {
    width: 40px;
    height: 40px;
    border-radius: 20px;
}
li .username, li .close {
    display: inline-block;
    position: relative;
    bottom: 15px;
    left: 5px;
}

JavaScript

var asd = Rx.Observable.just('https://api.github.com/users')
    .flatMap(function(url){ return Rx.Observable.fromPromise($.getJSON(url)); })
    .map(function(res){ return res.main[0].article; });

asd.subscribe(function(x) { console.log(x); });