Reagent is a ClojureScript library that provides a minimal, efficient interface to React, enabling developers to define UI components using Hiccup-like vectors and manage state with reactive atoms. The library's architecture centers around three core concepts: reactive atoms (ratoms) for state, a Hiccup-to-React element compiler, and lifecycle macros like `with-let` and `defc`. Under the hood, Reagent implements its own reactive state management system (RAtom, RCursor, Reaction) that triggers automatic re-rendering of components when dereferenced state changes. The codebase demonstrates deep integration with React internals, including support for hooks, contexts, fragments, portals, error boundaries, server-side rendering, and concurrent mode. It is fully compatible with both React 18 and 19, and provides a seamless interop path with existing React libraries via `adapt-react-class` and `:>` syntax. The test suite is comprehensive, covering functional components, lifecycle behavior, reactive updates, and performance benchmarks. While primarily a UI library, the reactive state management components are designed with sufficient abstraction to be studied as a standalone pattern for reactive programming in ClojureScript.
This is the rx-angular monorepo, a production-grade toolkit for building fully reactive Angular applications with a focus on runtime performance, zone-less change detection, and developer experience. It provides a set of libraries including @rx-angular/state (reactive state management with RxState and rxEffects), @rx-angular/template (structural directives like *rxLet, *rxIf, *rxFor, and pipes like RxPush), @rx-angular/cdk (coercing, transformations, zone-less APIs, render strategies, and coalescing), @rx-angular/isr (incremental static regeneration for Angular SSR), @rx-angular/eslint-plugin (custom rules to enforce reactive, zone-less coding patterns), and @rx-angular/rebundle (an experimental esbuild/rolldown plugin for advanced chunk merging). The repo also includes comprehensive demo apps, documentation (Docusaurus), and end-to-end tests. The architecture is a typical Nx monorepo with each library as a separate secondary entry point, allowing tree-shaking. The code demonstrates strong engineering practices: extensive unit tests, property-based testing, well-typed APIs, and thoughtful abstractions for performance-critical rendering. The primary data flows are RxJS observable streams bound to Angular templates via the structural directives, with sophisticated scheduling and coalescing strategies to minimize change detection cycles.