Dev.to
6/26/2026

Stop Impossible States: State Machines in React ⚡
Short summary
Multiple React useState booleans create 'Boolean Soup'—impossible state combinations like both isLoading and isError true, causing UI glitches. Finite State Machines enforce one-state-at-a-time transitions, eliminating this bug class entirely. XState is the enterprise React standard for implementing FSMs, making complex interfaces predictable, testable, and self-documenting.
- •Multiple useState booleans create mathematically impossible states (2^n combinations) in React components
- •Finite State Machines enforce strict one-state-at-a-time rule, eliminating Boolean Soup bugs
- •XState library provides enterprise-standard React implementation with concrete code examples and clear transition rules
Generated with AI, which can make mistakes.
Is this a good recommendation for you?



