@harlem/core is a state management library for JavaScript applications. It provides a simple and intuitive API for managing application state and handling state changes. With @harlem/core, you can easily define and update reactive state variables, create computed properties, and subscribe to state changes.
@ngxs/store is a state management library for Angular applications. It provides a simple and intuitive way to manage the state of your application by using a centralized store and reactive principles. With @ngxs/store, you can easily define and update the state of your application, and automatically trigger UI updates when the state changes.
Both @harlem/core and @ngxs/store are popular state management libraries in the JavaScript ecosystem. However, @ngxs/store has a longer history and a larger user base, making it more widely known and adopted.
Architecture
@ngxs/store follows a state management pattern called Redux, which uses a central store and immutable data flow. On the other hand, @harlem/core is inspired by Recoil and implements an atom tree structure, allowing for fine-grained state management and localized reactivity.
Integration with Frameworks
@ngxs/store is specifically designed for Angular applications and tightly integrates with Angular's change detection system. It provides decorators, dependency injection, and seamless integration with Angular's component lifecycle. @harlem/core, on the other hand, is framework-agnostic and can be used with any JavaScript framework or library, making it more versatile.
Developer Experience
@ngxs/store provides a more explicit and structured approach to state management, with strong typing and IDE support. It also offers various plugins and devtools for debugging and inspecting the state. @harlem/core focuses on simplicity and minimal configuration, providing a more lightweight and intuitive developer experience.
Ecosystem and Tooling
@ngxs/store has a large ecosystem and community support, with various plugins, integrations, and extensions available. It also supports time-travel debugging and has extensive documentation. @harlem/core is a newer library and has a smaller ecosystem, but it offers modern tooling like TypeScript support and has a growing community.
Performance
Both libraries aim for good performance, but @harlem/core emphasizes efficient reactivity and localized state updates. It leverages modern JavaScript features like proxies to achieve optimal performance. @ngxs/store also focuses on performance optimizations and provides features like memoized selectors and change detection strategies for better performance in Angular applications.
