An anti-pattern is a behavior or practice that is common despite being ineffective or counterproductive.

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20
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12answers
5k views

What design patterns are the worst or most narrowly defined? [closed]

For every programming project, managers with past programming experience try to shine when they recommend some design patterns for your project. I like design patterns when they make sense or if you ...
36
votes
8answers
2k views

Code maintenance: keeping a bad pattern when extending new code for being consistent, or not?

I have to extend an existing module of a project. I don't like the way it has been done (lots of anti-pattern involved, like copy/pasted code). I don't want to perform a complete refactor for many ...
1
vote
5answers
292 views

Does this have a name? DRY overloading?

public int foo(int x) { int defaultValue = 0; return foo(x, defaultValue); } public int foo(int x, int y) { return x + y; }
286
votes
13answers
84k views

So Singletons are bad, then what?

There has been a lot of discussion lately about the problems with using (and overusing) Singletons. I've been one of those people earlier in my career too. I can see what the problem is now, and yet, ...
2
votes
6answers
902 views

Is “call and return” a pattern or an antipattern?

Imagine to have this code: class Foo: def __init__(self, active): self.active = active def doAction(self): if not self.active: return # do something f=Foo(false) f.doAction() ...
26
votes
8answers
2k views

What to do about “Failure Driven Development”?

At our shop, we strive to be agile. And I'd say we are making great strides. That said, a few of us have spotted a pattern we have started calling "Failure Driven Development". Failure Driven ...
40
votes
41answers
3k views

Which comments instantly ring alarm bells when a programmer says them? [closed]

Similar to my question about easily spotted warning signs in code I think sometimes comments programmers make can tell you quite a lot (of not good things) about them in a short period of time. The ...
98
votes
60answers
10k views

Which things instantly ring alarm bells when looking at code? [closed]

I attended a software craftsmanship event a couple of weeks ago and one of the comments made was "I'm sure we all recognize bad code when we see it" and everyone nodded sagely without further ...