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Factui

screenshot of Factui

Declarative UI State Management for React

Github

Overview

FactUI is an innovative library designed for the efficient and declarative rendering of user interfaces, built upon a tuple-oriented data store. It emerges from the evolution of ClojureScript and React frameworks, which focus on data-driven interfaces where the visual representation of the UI is a direct reflection of the underlying data. With FactUI, users can navigate and overcome common challenges inherent in larger applications, particularly concerning application data structure and update patterns.

By employing an immutable application state combined with a sophisticated reactivity model, FactUI ensures that only the necessary components re-render when the underlying data changes. This leads to a performant and streamlined experience for developers looking to create dynamic UIs without the usual complexity.

Features

  • Immutable Application State: The entire application state is stored in a single immutable value, promoting predictability and stability in data handling.

  • Selective Component Re-rendering: Components register queries against the application state and only those with altered query results will re-render, optimizing performance.

  • RETE Algorithm for Efficiency: Utilizes the RETE algorithm for efficient activation of rules, ensuring swift responses to updated facts and maintaining responsiveness in the UI.

  • Integration with Multiple React Wrappers: While showcased with the Rum React wrapper, FactUI can easily integrate with other wrappers such as Reagent or Om, expanding its versatility.

  • Compile-time Querying: Queries and rules are compiled at build time, reducing runtime overhead and enhancing efficiency during application operation.

  • Schema Definition for Clean Data Handling: Requires clear schema definitions for attributes to ensure correct update semantics, contributing to the reliability of the overall application logic.

  • Dynamic Component Definitions: Components can be elegantly defined by calling the factui.rum/q mixin, which streamlines the subscription process to query results and updates.