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JavaScript: What are .extend and .prototype used for?

...otypeJS, copies all properties from the source to the destination object. Now about the prototype property, it is a member of function objects, it is part of the language core. Any function can be used as a constructor, to create new object instances. All functions have this prototype property. W...
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Scala type programming resources

...]]] (This is a lot like defining a val to be the result of a function.) Now, suppose we want to define a value-level function def toInt[T <: Nat](v : T) which takes in an argument value, v, that conforms to Nat and returns an integer representing the natural number encoded in v's type. For exa...
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Multiline strings in VB.NET

...duced in Visual Basic 14 (in Visual Studio 2015). The above example can be now written as: Dim s As String = "Hello World & Space" MSDN article isn't updated yet (as of 2015-08-01), so check some answers below for details. Details are added to the Roslyn New-Language-Features-in-VB-14 Github ...
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ERROR:'keytool' is not recognized as an internal or external command, operable program or batch file

...sing the below command set PATH=C:\Program Files\Java\jdk1.8.0_211\bin now the path is set now you can use the keytool share | improve this answer | follow ...
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How to implement an abstract class in ruby?

I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like... ...
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What is the proper way to re-attach detached objects in Hibernate?

....getYetAnotherEntity(), you may have a LazyInit exception. The only way I know to overcome that is to use find. entity = em.find(entity.getClass(), entity.getId(); – John Rizzo Mar 29 '11 at 9:16 ...
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Add spaces before Capital Letters

... it takes the Regex. Update 2 Will it take Acronyms into account? It will now! The logic of the if statment is fairly obscure, as you can see expanding it to this ... if (char.IsUpper(text[i])) if (char.IsUpper(text[i - 1])) if (preserveAcronyms && i < text.Length - 1 &&...
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Is cout synchronized/thread-safe?

... Technically true for C++98/C++03, but I think everybody knows that. But this does not answer the two interesting questions: What about C++0x? What do typical implementations actually do? – Nemo Jun 16 '11 at 15:46 ...
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Excel: last character/string match in a string

...ink how to apply without lengthy recursive algorithm. And this solution now seems obsolete. 12 Answers ...
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?

... to a generator. (If we were talking about TCP, yield from g might mean "now temporarily disconnect my client's socket and reconnect it to this other server socket".) BTW, if you are not sure what sending data to a generator even means, you need to drop everything and read about coroutines first...