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Using MemoryStore in production

... sessionStore.get(sessions[i], function() {} ); } }); } Now just call sessionCleanup periodically via setInterval() and you have automatic garbage collection for expired sessions. No more memory leaks. sha...
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What is the documents directory (NSDocumentDirectory)?

...ch with @"~/Documents". Hardcoding paths is never a good idea. It may work now, but if Apple ever chooses to rename or move the Documents directory, your app will break. NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); will always give you the correct directory! ...
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Inheritance vs. Aggregation [closed]

...s is more or less as the original class. Use inheritance. The new class is now a subclass of the original class. If the new class must have the original class. Use aggregation. The new class has now the original class as a member. However, there is a big gray area. So we need several other tricks....
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How do you know what to test when writing unit tests? [closed]

...y question), I have got some good feedback on that. Namely: I Don’t Know Where to Start? Start afresh. Only think about writing tests when you are writing new code. This can be re-working of old code, or a completely new feature. Start simple. Don’t go running off and trying to...
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Is it possible to install another version of Python to Virtualenv?

...tions. This is just part of an ongoing, larger project I am engineering. Now, for the drop... Set up environment folders. $ mkdir env $ mkdir pyenv $ mkdir dep Get Python-2.7.3, and virtualenv without any form of root OS installation. $ cd dep $ wget http://www.python.org/ftp/python/2.7.3/Pyt...
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Adding Python Path on Windows 7

...am not sure the %path% is needed. On my Windows 7 system, new cmd windows now have two copies of the previous paths. – Paul Lynch Nov 7 '14 at 15:38 ...
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Random number generation in C++11: how to generate, how does it work? [closed]

......, 10 each with equal probability (think of this as the classic rand()). Now you want a random number in the range 0, 1, 2, each with equal probability. Your knee-jerk reaction would be to take rand() % 3. But wait, the remainders 0 and 1 occur more often than the remainder 2, so this isn't correc...
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Cache an HTTP 'Get' service response in AngularJS?

... I think there's an even easier way now. This enables basic caching for all $http requests (which $resource inherits): var app = angular.module('myApp',[]) .config(['$httpProvider', function ($httpProvider) { // enable http caching ...
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How to remove empty cells in UITableView? [duplicate]

... It's now tableView.tableFooterView = UIView(frame: CGRect.zero) – Ryan Walton Oct 27 '15 at 17:35 ...
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What is the difference between statically typed and dynamically typed languages?

...ed languages A language is statically typed if the type of a variable is known at compile time. For some languages this means that you as the programmer must specify what type each variable is (e.g.: Java, C, C++); other languages offer some form of type inference, the capability of the type system...