Re^3: How to print a multi-level Hashes of Hashes without the use of a module

Hello thanos1983,

I was not aware that you can call the same subroutine inside the actual subroutine.

This is a very important concept in computer science called recursion. It’s one of the key elements of the functional programming paradigm (think Lisp, Scheme, Haskell, ...), but is by no means limited to that paradigm. In fact, it’s something every programmer needs to know. Here are some references:

Wikipedia, Recursion_(computer_science)
DigitalKitty, Recursion: The Towers of Hanoi problem (Monastery Tutorial)
Gabor Szabo (szabgab), “Understanding Recursive Subroutines — Traversing a Directory Tree,” online
Jonathan Bartlett, “Mastering Recursive Programming,” online
Mark Jason Dominus, Higher-Order Perl, “Chapter 1: Recursion and Callbacks,” online

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

Comment on Re^3: How to print a multi-level Hashes of Hashes without the use of a module

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Re^4: How to print a multi-level Hashes of Hashes without the use of a module by thanos1983 (Parson) on Jan 25, 2015 at 13:27 UTC
Hello Athanasius, Wow thank you for your time and effort providing me all these tutorials. To be honest at the beginning it was not the easiest thing to understand, but reading one after the other tutorial it started to make more sense. Thank you again for your time and effort. Seeking for Perl wisdom...on the process of learning...not there...yet!	[reply] [d/l] [select]