The State pattern allows an object to alter its behavior when its internal state changes, appearing as if it changed its class.
The State pattern is a behavioral design pattern that allows an object to change its behavior when its internal state changes. The object will appear to change its class. This pattern is useful for implementing finite state machines, workflow engines, and managing complex conditional logic. In frontend development, it's used for managing application states (loading, error, success), form states, and UI component states.