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What is so bad about singletons? [closed]

... 1310 Paraphrased from Brian Button: They are generally used as a global instance, why is that so...
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Python `if x is not None` or `if not x is None`?

... answered Apr 26 '10 at 3:13 Xavier HoXavier Ho 12.6k77 gold badges4444 silver badges5252 bronze badges ...
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Unable to import a module that is definitely installed

... answered May 4 '13 at 17:55 Paul WangPaul Wang 1,17411 gold badge99 silver badges1515 bronze badges ...
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What does “hashable” mean in Python?

... answered Jan 26 '13 at 9:49 NPENPE 416k8181 gold badges858858 silver badges949949 bronze badges ...
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Spring Data JPA - “No Property Found for Type” Exception

...know – Błażej Kocik Nov 30 '17 at 13:01 6 ...
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What is the equivalent of the C++ Pair in Java?

... Luc TourailleLuc Touraille 70.2k1313 gold badges8181 silver badges134134 bronze badges ...
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What is the best way to determine the number of days in a month with JavaScript?

... ).getDate() – Noel Walters Feb 20 '13 at 14:55 4 Note to my future-self: fguillen's equation wi...
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How does SSL really work?

...a private key? – Koray Tugay Oct 4 '13 at 21:52 you forgot to mention that the public key is part of the certificate f...
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

.... – Dennis Zickefoose Aug 12 '10 at 13:36 2 @user420536 : The behavior is just unspecified but no...
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Is JavaScript's “new” keyword considered harmful?

...ch constructor. – stephenbez Mar 7 '13 at 23:27  |  show 27 more comments ...