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What is the explicit promise construction antipattern and how do I avoid it?
...ptimisations in place. Using them will likely make your code faster, or at least allow to be optimised by future revisions of the library.
How do I avoid it?
So whenever you find yourself manually creating a Promise or Deferred and already existing promises are involved, check the library API firs...
How do you know when to use fold-left and when to use fold-right?
...perators that don't have a specific associativity, always use foldLeft, at least in Scala. Otherwise, go with other advice given in the answers ;).
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What REALLY happens when you don't free after malloc?
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Yes you are right, your example doesn't do any harm (at least not on most modern operating systems). All the memory allocated by your process will be recovered by the operating system once the process exits.
Source: Allocation and GC Myths (PostScript alert!)
Allocation Myth...
Websocket API to replace REST API?
...se connections. (and that happens often on mobile phones). So, you need at least a kind of mechanism to kick out idle users. I haven't put effort yet in doing that thoug
Create Generic method constraining T to an Enum
...on methods are like a virus that infects all your objects. IConvertable at least narrows it down quite a bit.
– russbishop
Mar 5 '14 at 18:04
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__lt__ instead of __cmp__
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must define at least one ordering operation: < > <= >= .... eq is not needed as total order if ! a<b and b<a then a=b
– Xanlantos
May 22 at 2:50
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The written versions of the logical operators
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At least Visual Studio 2015 CTP 6 did not like my or or not without including the header.
– usr1234567
Mar 15 '15 at 22:25
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Ternary operator is twice as slow as an if-else block?
...read everywhere that ternary operator is supposed to be faster than, or at least the same as, its equivalent if - else block.
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Virtual/pure virtual explained
...h no directly-callable implementation. Such a method must be overridden at least once in the inheritance hierarchy -- if a class has any unimplemented virtual methods, objects of that class cannot be constructed and compilation will fail.
@quark points out that pure-virtual methods can have an impl...
App restarts rather than resumes
Hopefully someone can help me figure out, if not a solution, at least an explanation for a behaviour.
9 Answers
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