Debugging React with console.log() is one of the quickest ways to understand how state, props, and events flow through your components. As the creator of CoreUI and a developer with over 25 years of experience, I reach for console.log() constantly during local development to trace exactly when and why a component updates. The key is knowing where to place your logs — inside useEffect() for state changes, inside event handlers for user interactions, and never directly in the render body for production code.