Check out a free preview of the full Firebase + React: Real-time, Serverless Web Apps course:
The "Polishing the Experience" Lesson is part of the full, Firebase + React: Real-time, Serverless Web Apps course featured in this preview video. Here's what you'd learn in this lesson:

Polishing the experience for the application, Steve checks to see if a key exists in Firebase before displaying it in the browser.

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