Reflex
Practical Functional Reactive Programming
Reflex is an fully-deterministic, higher-order Functional Reactive Programming (FRP) interface and an engine that efficiently implements that interface.
Reflex-DOM is a framework built on Reflex that facilitates the development of web pages, including highly-interactive single-page apps.
A summary of Reflex functions is available in the quick reference.
Visit https://reflex-frp.org/ for more information, tutorials, documentation and examples.