Modern QA2026Key Takeaways — tiles
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5.9Key Takeaways

  • map/filter/reduce replace explicit loops with declarative data processing
  • Closures create pre-configured functions — essential for API clients and factories
  • Higher-order functions build flexible, reusable test utilities
  • Favor immutable data in test setup to prevent shared-state bugs
  • Combine functional patterns (data processing) with OOP (framework structure)