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Event system in Python

...r methods', which is a simple implementation of the Observer pattern. Basically, the handler methods (callables) are stored in an array and are each called when the event 'fires'. Publish-Subscribe The disadvantage of Observer event systems is that you can only register the handlers on the actual Ev...
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How do I check if the Java JDK is installed on Mac?

How do you check if Java SDK is installed on a Mac? 8 Answers 8 ...
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How to initialize a private static const map in C++?

... int>’ as ‘this’ argument of ‘std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = int; _Tp = int; _Compare = std::less<int>; _Alloc = std::allocator<std::pair<const int, int>...
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Detect Browser Language in PHP

... do you say they are one letter? Dutch (nl), Greek (el) and Slovenian (sl) all appear to be two letter: msdn.microsoft.com/en-us/library/ms533052(v=vs.85).aspx – Peter K. Nov 19 '12 at 17:35 ...
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How do I list the symbols in a .so file

... Note that readelf -Ws will show you all symbols, and nm -g shows only the externally visible symbols. This may be confusing if you are examining multiple symbol files and start interchanging your commands. – Andrew B May 2...
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Weak and strong property setter attributes in Objective-C

...g' part (casting from NS to CF) is a little tricky. You still have to manually manage CFRelease() and CFRetain() for CF objects. When you convert them back to NS objects you have to tell the compiler about the retain count so it knows what you have done. Its all here. ...
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Python nested functions variable scoping [duplicate]

I've read almost all the other questions about the topic, but my code still doesn't work. 10 Answers ...
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urlencode vs rawurlencode?

...php.net/manual/en/function.rawurlencode.php) Returns a string in which all non-alphanumeric characters except -_.~ have been replaced with a percent (%) sign followed by two hex digits. This is the encoding described in » RFC 3986 for protecting literal characters from being interpreted as spec...
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Run function from the command line

...ral answer. I have a script defined multiple customer functions, and only call one depending on my need – xappppp Apr 15 '18 at 4:16 1 ...
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Add spaces before Capital Letters

... (I even voted up Martin Browns answer), but they are expensive (and personally I find any pattern longer than a couple of characters prohibitively obtuse) This function string AddSpacesToSentence(string text, bool preserveAcronyms) { if (string.IsNullOrWhiteSpace(text)) return...