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Faye vs. Socket.IO (and Juggernaut)

...lementation of Bayeux, which has a large bearing on the following. Conceptually, yes: Faye could use Socket.IO. In practise, there are some barriers to this: I've no idea what kind of server-side support Socket.IO requires, and the requirement that the Faye client (there are server-side clients in...
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What is the difference between instanceof and Class.isAssignableFrom(…)?

...s Y which extends Z which extends A), results might be different. it is usually advised to write the code first picking one of the operators (the most convenient) and then profile your code to check if there are a performance bottleneck. Maybe this operator is negligible in the context of your code,...
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How to return a result from a VBA function

...also worth mentioning that the behaviour of the function differs when you call it from a spreadsheet, compared with calling it from another VBA function or Sub. – Doug Jenkins Sep 13 '18 at 23:08 ...
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How to include layout inside layout?

...sing Layouts Although Android offers a variety of widgets to provide small and re-usable interactive elements, you might also need to re-use larger components that require a special layout. To efficiently re-use complete layouts, you can use the tag to embed another layout inside the cu...
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Are inline virtual functions really a non-sense?

... excerpt from the excellent C++ faq: "The only time an inline virtual call can be inlined is when the compiler knows the "exact class" of the object which is the target of the virtual function call. This can happen only when the compiler has an actual object rather than a pointer or ...
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Unable to Cast from Parent Class to Child Class

... Well, I would hesitate to call this a "downcast". – Kirk Woll Dec 24 '12 at 4:43 ...
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Singleton: How should it be used

...rface widgets It is supposed to be a cache In strings In Sessions I can go all day long How to create the best singleton: The smaller, the better. I am a minimalist Make sure it is thread safe Make sure it is never null Make sure it is created only once Lazy or system initialization? Up to your re...
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How to check if object property exists with a variable holding the property name?

...atement would look like if (myObj[0]) which if myObj has any properties at all, the expresssion would evaluate to true. And myObj[0] may not be the property you are looking for. – Matt R Oct 26 '19 at 2:14 ...
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How to add parameters to a HTTP GET request in Android?

...a BasicHttpParams object and adding the parameters to that object, then calling setParams( basicHttpParms ) on my HttpGet object. This method fails. But if I manually add my parameters to my URL (i.e. append ?param1=value1&param2=value2 ) it succeeds. ...
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How do I enter RGB values into Interface Builder?

... Interface Builder? I can select predefined colors but I would like to manually enter in RGB values. Where can I do this? 5...