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B-Tree vs Hash Table

...ed in. These objects are looped over again to really find the right one inside this partition. So if you have small sizes you have a lot of overhead for small elements, big sizes result in further scanning. Todays hash tables algorithms usually scale, but scaling can be inefficient. There are indee...
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Output array to CSV in Ruby

... @David it's the file mode. "w" means write to a file. If you don't specify this, it'll default to "rb" (read-only binary mode) and you would get an error when trying to add to your csv file. See ruby-doc.org/core-1.9.3/IO.html fo...
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Putting text in top left corner of matplotlib plot

...import matplotlib.pyplot as plt # Build a rectangle in axes coords left, width = .25, .5 bottom, height = .25, .5 right = left + width top = bottom + height ax = plt.gca() p = plt.Rectangle((left, bottom), width, height, fill=False) p.set_transform(ax.transAxes) p.set_clip_on(False) ax.add_patch(p)...
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How to track down log4net problems

... one thing I've never figured out is how to tell what's going on on the inside. For example, I've got a console appender and a database appender in my project. I made a few changes to the database and the code, and now the database appender doesn't work anymore. I'll figure out why eventually, but i...
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Is there any way in C# to override a class method with an extension method?

There have been occasions where I would want to override a method in a class with an extension method. Is there any way to do that in C#? ...
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JUnit confusion: use 'extends TestCase' or '@Test'?

...hods can be annotated with @Before/@BeforeClass and @After/@AfterClass providing more flexibility Support for @Rule annotations on things like ExpectedException Support for the @Ignored annotation Support for alternative test runners using @RunWith To test for expected exceptions in a JUnit 3 Test...
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How to inject dependencies into a self-instantiated object in Spring?

...hat: private @Autowired AutowireCapableBeanFactory beanFactory; public void doStuff() { MyBean obj = new MyBean(); beanFactory.autowireBean(obj); // obj will now have its dependencies autowired. } share ...
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Set active tab style with AngularJS

...ely on URLs is to add a custom attribute to every partial during $routeProvider configuration, like this: $routeProvider. when('/dashboard', { templateUrl: 'partials/dashboard.html', controller: widgetsController, activetab: 'dashboard' }). when('/lab', { ...
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?

...ric: You have it correct all the way through apart from a sentence in the middle where you mix. Its prefix that is better. – Martin York Oct 2 '10 at 19:10 6 ...
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Rails: confused about syntax for passing locals to partials

... the only way to figure these things out are to a.) have a hunch like you did and b.) view the source code. I have no idea how to drill down the source though... sorry – sethvargo Dec 9 '10 at 20:13 ...