Worked on enhancing UI reliability in the livekit/client-sdk-js repository, focusing on front-end development using TypeScript. Addressed a critical bug affecting the sample button’s display state, ensuring it accurately reflected a participant’s connection status after joining a room. This fix resolved a visual inconsistency that previously led to misleading UI cues, improving the integration experience for developers using the SDK. The solution involved careful state management within the client-side logic, targeting edge cases that could confuse users in the sample application. By prioritizing user experience and interface accuracy, contributed to a more robust and predictable UI for real-time applications.