Effector is a state management library for JavaScript applications, focusing on predictable state management and efficient event handling. It provides a declarative way to define and update application state, making it easier to manage complex data flows and interactions. Effector offers features like stores, events, effects, and combinators to handle state changes and side effects in a clear and concise manner.
MobX is a simple, scalable state management library for JavaScript applications. It enables you to create reactive data models that automatically update when the underlying data changes. MobX follows a more direct and transparent approach compared to other state management solutions like Redux, reducing boilerplate code and making it easier to maintain and understand complex application state.
Effector is a state management library that focuses on predictable state management and side effects handling. It provides a declarative way to manage state and handle asynchronous actions. MobX, on the other hand, is a reactive state management library that uses observables to automatically track and update state changes. It offers a more flexible and less opinionated approach to state management.
Performance
Effector is known for its performance optimizations, such as efficient event handling and minimal re-renders. It provides tools like stores, events, and effects to manage state updates efficiently. MobX also offers good performance due to its reactivity system, which only updates components that are affected by state changes. Both libraries are considered to be performant, but Effector's focus on performance optimizations gives it an edge in some scenarios.
Developer Experience
Effector provides a more structured and opinionated approach to state management, which can be beneficial for large-scale applications where predictability and maintainability are crucial. It offers tools like stores, events, and effects that help in organizing code and handling side effects. MobX, on the other hand, offers a more flexible and intuitive API that is easy to get started with and allows for quick prototyping. It provides a more hands-off approach to state management, which can be preferred for smaller projects or when flexibility is key.
Community and Ecosystem
MobX has been around for longer and has a larger community and ecosystem compared to Effector. This means that MobX has more resources, tutorials, and third-party integrations available. Effector, being a newer library, is steadily growing its community and ecosystem, but it may have fewer resources and community support compared to MobX.
Scalability
Effector is designed with scalability in mind and provides tools to manage complex state and side effects in large applications. Its structured approach and focus on predictability make it suitable for scaling applications. MobX, while also scalable, may require more manual intervention to maintain scalability in very large applications due to its more flexible nature.