Compare MobX with other state management systems.

MobX differs from most popular solutions in that it is based on the concept of reactive observables and automatic dependency tracking.

MobX vs Redux

Criterion	MobX	Redux
Model	Reactive observables	Single immutable state
Modification	State of observable changes directly	Sending actions processed by reducers
Code	Less boilerplate, more imperative style	More boilerplate (actions, reducers, middlewares), functional style
Predictability	Less predictable due to direct changes	High predictability due to immutable state and explicit mutations
Debugging	Requires tools to track changes	Developed ecosystem of debugging tools (Redux DevTools)
Performance	Optimized for automatic dependency tracking	Optimized with memoization and selectors

MobX vs Context API (with useReducer)

• Context API itself is not a full state management system for complex applications; it is more for passing data. In combination with useReducer, it can create functionality similar to Redux but without its ecosystem and optimizations.
• MobX offers a more automated approach to managing reactivity and dependencies, which can be more convenient for a large number of interacting state parts.

MobX vs Recoil/Jotai

• These libraries (based on atoms) are similar to MobX in reactivity but use the concept of discrete, independent "atoms" of state.
• MobX is more holistic, managing state as a single graph of observables. Recoil/Jotai may be simpler for small, fragmented parts of state.

Main advantages of MobX:

• Less boilerplate.
• Automatic dependency tracking.
• Simpler and more intuitive API for many scenarios.

Disadvantages of MobX:

• Less predictability compared to Redux due to direct state changes.
• Can be harder to debug in complex scenarios without additional tools.
• Requires understanding of the observable concept and reactivity.

The choice between MobX and other systems depends on team preferences, application complexity, and required predictability.