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Async & Functional

Status: ⏳ PENDING

The inverse of this chapter's rules — practices to recognize and avoid. Each will get a junior-level definition, a real example of the harm it causes, and the clean alternative.

Anti-Patterns to Cover

  • Async without backpressure (unbounded queues, memory blowup)
  • Callback hell (deep nesting instead of composing)
  • Unhandled promise rejections / dropped futures
  • Mixing sync and async APIs in one function ('coloured function' violations)
  • Blocking the event loop with CPU-bound work

See the chapter README for the positive rules.