functional-frontend-architecture

Update functions are pure, taking state and actions to return new state without mutations, making testing and debugging straightforward, as emphasized in the README's focus on side-effect-free code.

Applications are built from encapsulated modules that can be nested and composed, enabling scalable architecture, demonstrated in examples like the nesting example with three-level action routing.

The architecture is library-agnostic, allowing developers to choose preferred tools for virtual DOM (e.g., Snabbdom or React) and state updates, avoiding vendor lock-in as described in the libraries section.

Integrates FRP through libraries like Flyd for handling time-changing values and side effects in a controlled manner, as shown in counters and TodoMVC examples with live data streams.