The honest answer is: both, depending on which part of the codebase you're looking at — and that flexibility is exactly what enterprise teams need to plan around.
A Language With Two Dialects
Scala runs on the JVM and supports full object-oriented programming, so teams coming from Java can write it that way. But its functional features — immutability by default, pattern matching, first-class functions — let teams write in a very different, more declarative style.
The practical implication for enterprise teams
- Agree on which paradigm dominates before the codebase grows
- Use linting to enforce the chosen style, not just convention
- Train new hires explicitly on the team's dialect, not generic Scala
The risk isn't picking the wrong paradigm — it's never picking one, and ending up with a codebase that mixes both inconsistently.
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