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List comprehension vs map

...map() over list comprehension or vice versa? Is either of them generally more efficient or considered generally more pythonic than the other? ...
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Optimal number of threads per core

...et you the best performance. However that very likely not the case. Adding more threads usually helps, but after some point, they cause some performance degradation. Not long ago, I was doing performance testing on a 2 quad-core machine running an ASP.NET application on Mono under a pretty decent l...
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Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)

...y, OOP just didn't seem all that important. Not when we can write simpler, more concise and more efficient code by using techniques available through templates and generic programming. OOP is not the holy grail. It's a cute idea, and it was quite an improvement over procedural languages back in the...
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When is assembly faster than C?

...embler is that, on occasion, it can be employed to write code that will be more performant than writing that code in a higher-level language, C in particular. However, I've also heard it stated many times that although that's not entirely false, the cases where assembler can actually be used to g...
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What is the difference between DAO and Repository patterns?

...does seem common to see implementations called a Repository that is really more of a DAO, and hence I think there is some confusion about the difference between them. share | improve this answer ...
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What's the best UI for entering date of birth? [closed]

...he problem with most datepickers is that it's painfull to go back 30/40/or more years. – UnkwnTech Dec 4 '08 at 10:36 3 ...
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How do I check if a list is empty?

...ing "magical" things. on the other hand, "duck typing" means working with more general interfaces, rather than explicitly checking for types. so something like if a == [] is forcing a particular type (() == [] is False). here, general consensus seems to be that duck typing wins out (in effect, sa...
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Differences between Java 8 Date Time API (java.time) and Joda-Time

...ime also offers additional mutable types like MutableDateTime. b) Furthermore: Both libraries are inspired by the design study "TimeAndMoney" from Eric Evans or ideas from Martin Fowler about domain driven style so they strive more or less for a fluent programming style (although not always perfec...
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How do I parse command line arguments in Java?

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How many database indexes is too many?

...ntless since it doesn't add anything in terms of looking the data up. The more unique the values in a column, the more it will benefit from an index. share | improve this answer | ...