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What is “overhead”?

... s/drive/go/ (If you're needing to drive somewhere you don't usually decide to walk... – RCIX May 19 '10 at 7:18 1 ...
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What's the Point of Multiple Redis Databases?

...ce are no different than schemas in RDBMS database instances. So, with all of that said, why/when would I ever want to use multiple Redis databases instead of just spinning up an extra instance of Redis for each extra database I want? There's one clear advantage of using redis databases in...
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Vim delete blank lines

... Thanks soulmerge. This is my favorite answer, since it actually explains what the :g command does. – Tim Swast Aug 15 '11 at 19:03 4 ...
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Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario

...m to be leaving out the most important point: Unless you are trying to parallelize a CPU-intensive operation in order to get it done faster on a low-load site, there is no point in using a worker thread at all. That goes for both free threads, created by new Thread(...), and worker threads in the ...
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How do you add an in-app purchase to an iOS application?

How do you add an in-app purchase to an iOS app? What are all the details and is there any sample code? 5 Answers ...
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When would you use the different git merge strategies?

...s: Recursive Recursive is the default for non-fast-forward merges. We're all familiar with that one. Octopus I've used octopus when I've had several trees that needed to be merged. You see this in larger projects where many branches have had independent development and it's all ready to come to...
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How do Trigonometric functions work?

...angles between 0 and 45 degrees, you can bootstrap your way to calculating all trig functions for all angles. Once you've reduced your argument, most chips use a CORDIC algorithm to compute the sines and cosines. You may hear people say that computers use Taylor series. That sounds reasonable, but...
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Can an abstract class have a constructor?

...hardcodes the value 2. The concrete class TimesWhat has a constructor that allows the caller to specify the value. Abstract constructors will frequently be used to enforce class constraints or invariants such as the minimum fields required to setup the class. NOTE: As there is no default (or no...
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How to convert wstring into string?

...e <locale> #include <vector> int main() { std::setlocale(LC_ALL, ""); const std::wstring ws = L"ħëłlö"; const std::locale locale(""); typedef std::codecvt<wchar_t, char, std::mbstate_t> converter_type; const converter_type& converter = std::use_facet<converter...
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SQLAlchemy: Creating vs. Reusing a Session

Just a quick question: SQLAlchemy talks about calling sessionmaker() once but calling the resulting Session() class each time you need to talk to your DB. For me that means the second I would do my first session.add(x) or something similar, I would first do ...