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How can I dynamically create derived classes from a base class

...ter names. The parameter verification in __init__ just does not allow unknown parameters, if you need other verifications, like type, or that they are mandatory, just add the logic there: class BaseClass(object): def __init__(self, classtype): self._type = classtype def ClassFactory(...
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nodeJs callbacks simple example

...llback = function(data) { console.log('got data: '+data); }; var usingItNow = function(callback) { callback('get it?'); }; Now open node or browser console and paste the above definitions. Finally use it with this next line: usingItNow(myCallback); With Respect to the Node-Style Error Con...
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Are Javascript arrays sparse?

... actual array would be inefficient. You'll have to ask someone with more knowledge about specific implementations to answer what excatly triggers the shift from dense to sparse, but your example should be perfectly safe. If you want to get a dense array, you should call the constructor with an expl...
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Simplest way to detect a mobile device in PHP

... this answer is now so obsolete. there are many false positives, safari on OSX is detected as a mobile, Chrome on OSX detected as Mobile. – DevZer0 May 25 '16 at 14:21 ...
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Insert/Update Many to Many Entity Framework . How do I do it?

... joining table. That is the correct behaviour and that's what you expect. Now, when doing inserts or updates, try to think in terms of objects. E.g. if you want to insert a class with two students, create the Class object, the Student objects, add the students to the class Students collection add t...
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Using ChildActionOnly in MVC

... ViewBag.Message = "This is from Index()"; var model = DateTime.Now; return View(model); } [ChildActionOnly] public PartialViewResult MyDateTime() { ViewBag.Message = "This is from MyDateTime()"; var model = DateTime.Now; return PartialVie...
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Is there something like RStudio for Python? [closed]

...hat I can see Rodeo 2.0 uses Electron. It still is a browser tool, only it now comes with its own browser to make it feel like its a native app. (It's also worth mentioning that it comes with a dependency on NodeJS.) – Phillip Jan 17 '17 at 10:21 ...
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What's “requestCode” used for on PendingIntent?

... No, It is not necessary for different intents. And I don't know why the documentation doesn't say anything about it, but I learnt this when setting repeating alarms and also when using the same intent. – Minhaj Arfin Feb 3 '14 at 12:46 ...
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Missing include “bits/c++config.h” when cross compiling 64 bit program on 32 bit in Ubuntu

...64-redhat-linux cd x86_64-redhat-linux ln -s ../i686-redhat-linux 32 I'm now able to compile 32bit binaries on a 64bit OS. share | improve this answer | follow ...
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What is Turing Complete?

...lar to those machines (although virtual). They take programs and run them. Now, a programing language is called "Turing complete", if that it can run any program (irrespective of the language) that a Turing machine can run given enough time and memory. For example: Let's say there is a program tha...