Switching languages or stacks
You’re productive in language A and need to ship in B. You don’t need a lecture—you need aligned snippets and a sense of what gets harder or weirder.
What to do here
- Use Compare for side-by-side cheatsheet dimensions (loops, errors, imports, …).
- Use Concept transfer for one concept across two languages, with heuristic difficulty delta.
- Read ecosystem_notes and learning_curve on each detail page for context.
Limits
Heuristics are useful, not authoritative. Always verify behaviour against B’s docs and your runtime version.