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Mediator Vs Observer Object-Oriented Design Patterns

...-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically. The Mediator pattern: Define an object that encapsulates how a set of objects interact. Mediator promotes loose coupling by keeping objects from referring to each o...
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Loop backwards using indices in Python?

... This is better than the accepted answer since it doesn't actually allocate all the numbers in memory (in Python 3 the accepted answer wouldn't either), plus it's more obvious what is happening. – Blixt Mar 23 '12 at 13:52 ...
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What tools are there for functional programming in C?

...ing in C ( not C++). Obviously, C is a procedural language and doesn't really support functional programming natively. 13...
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How do I analyze a program's core dump file with GDB when it has command-line parameters?

...xt_ptr = "string in text segment"; (void)argv; mmap_ptr = (char *)malloc(sizeof(data_ptr) + 1); strcpy(mmap_ptr, data_ptr); mmap_ptr[10] = 'm'; mmap_ptr[11] = 'm'; mmap_ptr[12] = 'a'; mmap_ptr[13] = 'p'; printf("text addr: %p\n", text_ptr); printf("data addr: %p\n...
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Upgrading PHP in XAMPP for Windows?

...a backup of your htdocs and data folder (subfolder of MySQL folder), reinstall upgraded version and replace those folders. Note: In case you have changed config files like PHP (php.ini), Apache (httpd.conf) or any other, please take back up of those files as well and replace them with newly install...
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Stop all active ajax requests in jQuery

I have a problem, when submitting a form all active ajax request fail, and that triggers error event. 16 Answers ...
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Command-line Unix ASCII-based charting / plotting tool

... While gnuplot is powerful, it's also really irritating when you just want to pipe in a bunch of points and get a graph. Thankfully, someone created eplot (easy plot), which handles all the nonsense for you. It doesn't seem to have an option to force terminal gra...
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Is there a benefit to defining a class inside another class in Python?

What I'm talking about here are nested classes. Essentially, I have two classes that I'm modeling. A DownloadManager class and a DownloadThread class. The obvious OOP concept here is composition. However, composition doesn't necessarily mean nesting, right? ...
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Can I use Objective-C blocks as properties?

... @CharlieMonroe - Yes you are probably right, but dont you need a dealloc implementation to nil or release the block property without ARC? (its been a while since I used non-ARC) – Robert Mar 31 '13 at 21:58 ...
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Python Nose Import Error

...stem path. The following fixed this: source myvirtualenv/activate pip install nose which nosetests /home/me/myvirtualenv/bin/nosetests share | improve this answer | follow ...