state-machines

Use state machines to explicitly define states and transitions, ensuring UI flows remain predictable. XState v5 provides a typed machine definition that coordinates form states, loading sequences, error handling, and multi-step workflows without scattered conditional logic.

Yes. XState v5 integrates directly with React components to manage finite-state logic for forms, async operations, and error recovery. Define a typed machine with context and events, then invoke it in your component to handle state transitions automatically.

State machines excel at multi-step workflows by explicitly modeling each step and valid transitions. XState v5 supports invoke for side effects, onDone/onError handlers for async results, final states for completion, and actor composition to nest machines for modular, reusable flow logic.

Strong typing prevents invalid state and event combinations at compile time. XState v5 provides built-in TypeScript support for typed machine definitions, ensuring your state transitions, context, and events are validated before runtime.

Use state machines when UI flows have multiple interdependent states, explicit transitions, or side effects tied to state changes. State machines prevent impossible state combinations and make complex logic auditable; useState works for simple independent toggles.