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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?

...es <limits.h> are applicable. In terms of long double, that's actually a floating point value rather than an integer. Similarly to the integral types, it's required to have at least as much precision as a double and to provide a superset of values over that type (meaning at least those valu...
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Tool to Unminify / Decompress JavaScript [closed]

...iderMonkey and Rhino you can wrap any code into an anonymous function and call its toSource method, which will give you a nicely formatted source of the function. toSource also strips comments. E. g.: (function () { /* Say hello. */ var x = 'Hello!'; print(x); }).toSource() Will be converted to...
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?

...(git commit-tree -m "Throw away branch 'A'" -p A -p B B^{tree}) This basically acts like the (non-existent) merge -s theirs strategy. You can find the resulting history in the plumbing branch of the demo repository Not very readable and not as easy to remember compared to the -s ours switch, but it...
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Why can templates only be implemented in the header file?

...f; When reading this line, the compiler will create a new class (let's call it FooInt), which is equivalent to the following: struct FooInt { int bar; void doSomething(int param) {/* do stuff using int */} } Consequently, the compiler needs to have access to the implementation of the m...
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Sending images using Http Post

...client to the Django server using Http Post. The image is chosen from the gallery. At present, I am using list value name Pairs to send the necessary data to the server and receiving responses from Django in JSON. Can the same approach be used for images (with urls for images embedded in JSON respon...
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What is the difference between typeof and instanceof and when should one be used vs. the other?

... @Luke generally a bad idea to use "new String" like this. that creates a "string object" rather than a string primitive. see section here developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… – Colin D ...
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How do I unload (reload) a Python module?

.... When targeting 3 or later, either reference the appropriate module when calling reload or import it. I think that this is what you want. Web servers like Django's development server use this so that you can see the effects of your code changes without restarting the server process itself. To quo...
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How to read and write INI file with Python3?

... The standard ConfigParser normally requires access via config['section_name']['key'], which is no fun. A little modification can deliver attribute access: class AttrDict(dict): def __init__(self, *args, **kwargs): super(AttrDict, self).__init...
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Why can lambdas be better optimized by the compiler than plain functions?

...assing them to a function template will instantiate a new function specifically for that object. The compiler can thus trivially inline the lambda call. For functions, on the other hand, the old caveat applies: a function pointer gets passed to the function template, and compilers traditionally hav...
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What's the difference between the atomic and nonatomic attributes?

...o are identical; "atomic" is the default behavior (note that it is not actually a keyword; it is specified only by the absence of nonatomic -- atomic was added as a keyword in recent versions of llvm/clang). Assuming that you are @synthesizing the method implementations, atomic vs. non-atomic chang...