What if instead of building your own mental model of how data flows through your application, you could actually see the data flowing in real-time? In this talk we will explore functional and reactive streams as a building block in JavaScript applications, with tools like RxJS, Cycle.js, xstream, which enable DevTools from the future.
![See the data flowing through your app](https://cdn-ak-scissors.b.st-hatena.com/image/square/f5544a644ae83bfb6d52654dbf2906e37cb296c1/height=288;version=1;width=512/https%3A%2F%2Ffiles.speakerdeck.com%2Fpresentations%2Ffec678ef844b43379dee27423c00fd27%2Fslide_0.jpg%3F6804392)