Head-to-Head: Harlem vs react-async Analysis


v3.1.8(9 months ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 1Monthly npm downloads

@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.

Alternatives: redux, mobx, vuex

Tags: javascriptstate-managementreactivelightweight


v10.0.1(over 3 years ago)

This package was last published over a year ago. It may not be actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 0Monthly npm downloads

React Async is a library for managing asynchronous data fetching and rendering in React applications. It provides a simple and declarative way to handle asynchronous operations, such as fetching data from APIs or performing side effects. With React Async, you can easily handle loading states, error handling, and caching of data.

Alternatives: react-query, swr, redux-saga

Tags: javascriptreactasynchronousdata-fetchingrendering



@harlem/core and react-async are both popular npm packages, but react-async is more widely known and used in the React community. React-Async has gained popularity due to its robust async data loading capabilities, while @harlem/core is a state management library that is relatively newer and has a smaller user base.


React-Async is specifically designed to handle asynchronous operations in React components, providing features like declarative async rendering, caching, and error handling. On the other hand, @harlem/core is a state management library inspired by Zustand with a focus on simplicity and ease of use. It provides a way to manage application state in a predictable manner.


react-async seamlessly integrates with React and can be used in both class-based and functional components. It provides hooks and components that can be easily integrated into existing React codebases. @harlem/core is specifically designed to be used with React, providing a custom hook for managing state within components.

Developer Experience

Both packages aim to provide a good developer experience. React-Async has a well-documented API and provides TypeScript support, making it easier to work with. @harlem/core also has good documentation and TypeScript support, but it has a smaller community and may have a slightly steeper learning curve due to its newer status.


React-Async is a versatile package that can handle complex async operations and is suitable for large-scale applications. It provides advanced features like request cancellation and deduplication, making it scalable. @harlem/core is also suitable for various scales of applications, but it may lack some of the advanced features and optimizations provided by react-async.

Community Support and Maintenance

React-Async has a larger and more active community, which means better community support, more frequent updates, and bug fixes. @harlem/core is maintained by the Harlem.js team and has a smaller community, but it is actively maintained and responsive to issues and pull requests.