Raj - The Elm Architecture for JavaScript

Testability

Raj is a state management solution focused on testability. Following the program pattern utilized by Raj leads to better separated concerns, simpler logic, and easier tests.
Small and understandable

Raj is 40 lines; 236 bytes minified but not yet gzipped. With a minimal footprint, Raj lets us build libraries and applications that will outlive the latest trends.
Replaceable

Raj provides the smallest core possible and you build only what you need. If it does not work for your use case, get rid of it.
Bring your own view

Raj does not lock you into a view layer. As far as Raj is concerned the view is just a side effect of state.