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Difference between Array and List in scala

...at you should (probably) be using it much more than an Array (which is actually mutable - the immutable analog of Array is IndexedSeq). If you are coming from a Java background, then the obvious parallel is when to use LinkedList over ArrayList. The former is generally used for lists which are only...
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Creating stored procedure and SQLite?

...than in a separate SQL engine process. So it makes more sense to implement all your business logic including what would have been SP code in the host language. You can however extend SQLite with your own user defined functions in the host language (PHP, Python, Perl, C#, Javascript, Ruby etc). You ...
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What's the difference between belongs_to and has_one?

... They essentially do the same thing, the only difference is what side of the relationship you are on. If a User has a Profile, then in the User class you'd have has_one :profile and in the Profile class you'd have belongs_to :user. To det...
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What is the difference between IEqualityComparer and IEquatable?

...ted) IEqualityComparer<T> is an interface for an object (which is usually a lightweight class different from T) that provides comparison functions that operates on T – rwong Feb 22 at 16:40 ...
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Creating my own Iterators

... /EDIT: I see, an own iterator is actually necessary here (I misread the question first). Still, I'm letting the code below stand because it can be useful in similar circumstances. Is an own iterator actually necessary here? Perhaps it's sufficient to forward ...
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Getting URL hash location, and using it in jQuery

...te that this property already contains the # symbol at the beginning. Actually you don't need the :first pseudo-selector since you are using the ID selector, is assumed that IDs are unique within the DOM. In case you want to get the hash from an URL string, you can use the String.substring method:...
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Is there any way to use a numeric type as an object key?

...in an object, it always gets converted to a string. Is there anyway to actually get it to store as a numeric? The normal typecasting does not seem to work. ...
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How do I get an HttpContext object from HttpContextBase in ASP.NET MVC 1?

... Smyrnow who noted this in the comments) Original answer: You can, especially if the HttpContextBase instance you've been handed is of type HttpContextWrapper at run-time. The following example illustrates how you can do this. It supposes you have a method called Foo that accepts context as HttpCo...
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How to create json by JavaScript for loop?

...x (like what you would have in an actual .json file), I know that syntactically this is different. So, would you refer to just the array of objects as JSON, as well? – VoidKing Oct 15 '13 at 21:27 ...
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Convert List to List

...iterate over the list and cast the elements. This can be done using ConvertAll: List<A> listOfA = new List<C>().ConvertAll(x => (A)x); You could also use Linq: List<A> listOfA = new List<C>().Cast<A>().ToList(); ...