What programming language is used to write Flutter apps?
Why Interviewers Ask This
This is a classic screening question for Flutter roles. Hiring managers ask it early in interviews to gauge your baseline understanding and determine if you can communicate technical concepts clearly.
Answer
Flutter uses Dart, a client-optimized programming language developed by Google. Dart supports both JIT (Just-in-Time) compilation during development — enabling Hot Reload — and AOT (Ahead-of-Time) compilation for fast, high-performance production builds. Its syntax is clean and familiar to developers coming from Java, Kotlin, or JavaScript backgrounds, making it easy to pick up quickly.
Pro Tip
Back up your answer with a specific project or situation. Saying 'In my last Flutter project, I used this when...' immediately makes your answer more credible and memorable.