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Are Javascript arrays sparse?

... How exactly JavaScript arrays are implemented differs from browser to browser, but they generally fall back to a sparse implementation - most likely the same one used for property access of regular objects - if using an actual array would be inefficient. You'll have to ask some...
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Why use ICollection and not IEnumerable or List on many-many/one-many relationships?

... for a full list: http://msdn.microsoft.com/en-us/library/6sh2ey19.aspx). From a more specific standpoint, lazy loading comes in to play with choosing the type. By default, navigation properties in Entity Framework come with change tracking and are proxies. In order for the dynamic proxy to be crea...
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Explicitly calling a default method in Java

...oo(); } public void bah() { A.super.foo(); //original foo() from A accessed C.super.foo(); //original foo() from C accessed } } A and C can both have .foo() methods and the specific default implementation can be chosen or you can use one (or both) as part of your new foo(...
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How to implement the factory method pattern in C++ correctly

...er class to perform the job, then it should be a helper class that is used from the constructor anyway. Vec2(float x, float y); Vec2(float angle, float magnitude); // not a valid overload! There is an easy workaround for this: struct Cartesian { inline Cartesian(float x, float y): x(x), y(y) {...
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What is “git remote add …” and “git push origin master”?

...gms and concepts, it has the same zenlike clarity that I've come to expect from UNIX command line tools. You should consider taking some time off to read one of the many good git tutorials available online. The Pro Git book is a good place to start. To answer your first question. What is git remote...
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Why is f(i = -1, i = -1) undefined behavior?

... think undefined behavior means something random will happen, which is far from the case most of the time. – Izkata Feb 10 '14 at 17:38 ...
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Regex for splitting a string using space when not surrounded by single or double quotes

...ions or such long code. Essentially, you want to grab two kinds of things from your string: sequences of characters that aren't spaces or quotes, and sequences of characters that begin and end with a quote, with no quotes in between, for two kinds of quotes. You can easily match those things with ...
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Why is there an unexplainable gap between these inline-block div elements? [duplicate]

... In this instance, your div elements have been changed from block level elements to inline elements. A typical characteristic of inline elements is that they respect the whitespace in the markup. This explains why a gap of space is generated between the elements. (example) There...
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How to preview git-pull without doing fetch?

...rged later with git merge. Man Page Edit: Further Explination Straight from the Git- SVN Crash Course link Now, how do you get any new changes from a remote repository? You fetch them: git fetch http://host.xz/path/to/repo.git/ At this point they are in your repository and you can e...
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Java: Integer equals vs. ==

... Is the guarantee from the JLS or just for the Oracle JVM? – Thorbjørn Ravn Andersen Aug 12 '12 at 10:25 ...