JavaScript vs Dart in 2026: Which Language Should You Learn?

Learn JavaScript in 2026 if you want the maximum job opportunities — it powers the web, runs on Node.js for backend, and React Native for mobile, making it the most versatile single language. Dart is worth learning specifically if you're building cross-platform mobile apps with Flutter — Dart's async model and Flutter's widget system make it the fastest path to shipping on iOS and Android from one codebase. If you already know JavaScript and want to add mobile, React Native keeps you in the JavaScript ecosystem. Only choose Dart as a first language if Flutter mobile development is your explicit goal.