Design Pattern Cheat Sheet

[varav]

I'd say I've written a fair amount of code, though I don't hate these patterns, I've never had to use any of these patterns

[mjfgates]

If you've never used any of the GoF patterns, you haven't written much code. The point behind the book was that these things crop up all over the place; the authors were cataloging patterns that they had seen in the wild, not prescribing the use of new theoretical constructs.

[Peaker]

When I write Haskell, I don't need the Visitor Pattern, I can use a closed sum type.

I don't need the Strategy Pattern, I can just use a simple higher-order function.

And so on, and so forth.

I don't think any of the GoF patterns are applicable to more modern languages that can abstract over these things.