Into the Visual World of State Machines
summary
Replaces scattered booleans with a single state string, wires UI to a createMachine + useMachine pattern, and enforces transitions so invalid combos disappear; moves analytics into an entry action, uses state.can to enable buttons, and invokes async checks with a fromPromise invoke to call OpenAI for answer validation. Shows VS Code visual editor and browser inspector from Stately, demos a multiplayer Pictionary‑style game that survives many players and 20s rounds, all implemented with XState and a visual editor.
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chapters (26)
- 0:00Introduction
- 0:27Simple state management demo
- 2:11Problems with initial approach
- 3:56Refactoring to single state
- 5:19State machines concept
- 6:48Visualizing transitions with Teal Draw
- 7:30Demo with XState
- 9:02XState in React component
- 11:32Enforcing transitions with XState
- 12:37Disabling buttons by events
- 13:41UI vs state logic benefits
- 14:23Analytics as entry action
- 15:06Advanced state machine features
- 15:48Visualizing with Stately AI
- 17:10VS Code extension for editing
- 17:55Simulating in VS Code
- 18:58Debugging dev tools
- 20:26Demo with AI validation
- 22:35XState invoke for async ops
- 25:10Guards for conditional transitions
- 26:33Actions for side effects
- 27:18State machines for forms
- 28:23Multiplayer drawing game
- 30:08Drawing game demo
- 33:34Summary: When to use
- 34:36Q&A: Replacing saga stack
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