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Ask HN: What Are Some Useful/Nifty Design Patterns in Programming?

4 points by sidcool 8y ago

I have seen a general disdain for Design Patterns (GoF etc.). But are there any design patterns you have found very useful in programming? They could be one of the standard design patterns defined by GoF or others, or patterns that you had to create on your own to solve a particular problem. These could be Object Oriented or Functional Design patterns. I am not talking about any System level or Web scale design patterns here.

verdverm 8y ago
Visitor pattern is highly useful for tree like data.
- sidcool 8y ago
  Thanks. I have personally been trying to understand the Visitor pattern and its implementation since a few days. But I cannot for some reason wrap my mind around it. Any good article/video to explain it?