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Split List into Sublists with LINQ
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GroupBy doesn't return anything until it's enumerated all elements. That's why it's slow. The lists OP wants are contiguous, so a better method could yield the first sublist [a,g,e] before enumerating any more of the original list.
– Colonel Panic
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SOAP vs REST (differences)
... probably one of the sources of confusion around it, since people tend to call REST any HTTP API that isn't SOAP.
Pushing things a little and trying to establish a comparison, the main difference between SOAP and REST is the degree of coupling between client and server implementations. A SOAP clien...
Is there any way to enforce typing on NSArray, NSMutableArray, etc.?
Can I make a NSMutableArray instance where all the elements are of type SomeClass ?
11 Answers
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Is it safe to ignore the possibility of SHA collisions in practice?
...rgued that any unlucky event with a probability lower than that is not actually very important.
If we have a "perfect" hash function with output size n, and we have p messages to hash (individual message length is not important), then probability of collision is about p2/2n+1 (this is an approximat...
Why should C++ programmers minimize use of 'new'?
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There are two widely-used memory allocation techniques: automatic allocation and dynamic allocation. Commonly, there is a corresponding region of memory for each: the stack and the heap.
Stack
The stack always allocates memory in a sequential fashion. It c...
How to detect a textbox's content has changed
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The only downfall of 'input' is that it is not compatible with IE < 9.
– Catfish
Mar 21 '13 at 20:02
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How does one write code that best utilizes the CPU cache to improve performance?
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The cache is there to reduce the number of times the CPU would stall waiting for a memory request to be fulfilled (avoiding the memory latency), and as a second effect, possibly to reduce the overall amount of data that needs to be transfered (preserving memory bandwidth).
Techniques for ...
Which terminal command to get just IP address and nothing else?
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This will give you all IPv4 interfaces, including the loopback 127.0.0.1:
ip -4 addr | grep -oP '(?<=inet\s)\d+(\.\d+){3}'
This will only show eth0:
ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}'
And this way you can get...
Remove the bottom divider of an android ListView
... This seems to no longer work starting with 4.4.2. I can run literally the same app across my many test devices (ranging from 2.3.7 all the way up until 4.4.2) and KitKat is the only one where this seems to have no effect... Any ideas? I'm not adding a footer or header to my ListView and I'...
onActivityResult is not being called in Fragment
The activity hosting this fragment has its onActivityResult called when the camera activity returns.
39 Answers
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