Mark Pearl

Avoiding Pitfalls

Here are a few suggestions for avoiding common pitfalls when working with recursion.

  • Manipulating large values or complex objects will likely require explicit type, and boundary, checks such as those found within an iterative implementations.
  • Applying simplistic recursive thinking without care may lead to incorrect results and performance issues.
  • Maintaining state within a deep recursive call chain may demand refactoring or workarounds, such as, tail calls.
  • Debugging difficulties that are encountered when using non-trivial recursive methods may dictate logging and perseverance.


Rethinking the practicalities of recursion

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