RAI-JS: Context-oriented Programming with (reactive) Activation Interface for JavaScript (2020).
https://github.com/pleger/rai-js
The main related publication:
Activation Interfaces for Modular Reasoning in Context-Oriented Programming.
Paul Leger, Hidehiko Masuhara, Ismael FigueroaProceedings of the the 12th International Workshop on Context-Oriented Programming and Advanced Modularity (COP 20), Berlin, Germany, July 2020