2019 September 26-27

Rubén Sospedra

Mastering UIs with Finite State Machines

Hand-drawn sketch notes summarizing the talk of Rubén Sospedra
Sketchnotes by Malweene,

Did you ever feel like monkey patching your UI component? Adding too many if/else, handling a lot of complexity or hacking several non-desired side effects. Did you ever have a problem with double-clicking an async button? Fetching multiple times the same resource in a row? Did you have problems translating UX interfaces and mock-ups into your applications scenes?

All this kind of problems can be properly fixed by applying a different point of view. An architecture based upon Mealy state machines. Also known as finite state machines or automatas. These machines are deterministic, pure and idempotents. Opening a new set of possibilities from predictable components to autogenerated tests.

Let's take a look to this new paradigm for UI components. You'll discover a better and cleaner world ;)

Javascript hacker. Crossfiter and paleo-chef. I play the ukelele and read about political science. Gamer and cinephile