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Must Dependency Injection come at the expense of Encapsulation?

...r to have its dependency fulfilled. Some provider of the dependency must know both that the object in question requires a Foo, and the provider has to have a way of providing the Foo to the object. Classically this latter case is handled as you say, through constructor arguments or setter methods....
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Is it possible to print a variable's type in standard C++?

...(and good) answer is to use typeid(a).name(), where a is a variable name. Now in C++11 we have decltype(x), which can turn an expression into a type. And decltype() comes with its own set of very interesting rules. For example decltype(a) and decltype((a)) will generally be different types (and f...
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What is the __del__ method, How to call it?

...lace where this method is used. The main reason for that is that I do not know how this method is used, probably not like that: obj1.del() . So, my questions is how to call the __del__ method? ...
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Using sed and grep/egrep to search and replace

...ining about 10 unions, so like: .jpg | .png | .gif etc. This works well, now I would like to replace all strings found with .bmp ...
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Calling C/C++ from Python?

...7 g++ -shared -Wl,-soname,_code.so -o _code.so code.o code_wrap.o We can now use the function in Python scripts: #!/usr/bin/env python import code a= [[3,5,7],[8,10,12]] print a b = code.average(a) print "Assignment done" print a print b ...
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Duplicate AssemblyVersion Attribute

...overwrite the existing AssemblyVersion instead of creating a new entry? I know that our build process does that but I am curious that why it doesn't overwrite the existing one. Is it badly implemented or is it a limitation? – Aamir Apr 25 '12 at 9:18 ...
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Why does jQuery or a DOM method such as getElementById not find the element?

... It's now 2020 — is "Placing scripts at the bottom" still "considered a best practice" ? I (nowdays) put all my resources in the <head> and use defer on scripts (I don't have to support bad-old incompatible browsers) ...
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List of Big-O for PHP functions

After using PHP for a while now, I've noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes. ...
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Scala: What is a TypeTag and how do I use it?

All I know about TypeTags is that they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject. ...
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How are 3D games so efficient? [closed]

... Eeeeek! I know that this question is old, but its exciting that no one has mentioned VSync!!!??? You compared the CPU usage of the game at 60fps to CPU usage of the teapot demo at 60fps. Isn't it apparent, that both run (more or less)...