MobX, by default, applies deep observability on your objects, arrays, and maps. This allows you to see changes happening at any level in the observable tree. Although this a great default to start with, at some point, you will have to pay more attention to limit the observability. Cutting down on the observability also improves performance as there are fewer things to track from the point of view of MobX.
There are two distinct ways in which you can control observability:
- By using the various @decorators inside classes
- By using the decorate() API
