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Android - Set fragment id

...nsaction's add(int containerViewId, Fragment fragment, String tag) method and FragmentManager's findFragmentByTag(String) method. In one of my apps, I was forced to generate strings dynamically. But it's not that expensive relative to the actual FragmentTransaction, anyway. Another advantage to ...
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Class constants in python

...ternatively, you could create intermediate classes: HugeAnimal, BigAnimal, and so on. That would be especially helpful if each animal class will contain different logic. share | improve this answer ...
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Rails 4 - Strong Parameters - Nested Objects

...(:name, :groundtruth => [:type, :coordinates => []]) On the other hand if you want nested of multiple objects then you wrap it inside a hash… like this params.require(:foo).permit(:bar, {:baz => [:x, :y]}) Rails actually have pretty good documentation on this: http://api.rubyonrail...
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Copy to clipboard in Node.js?

... you wanted this to work on X for example, you would need bindings to Xlib and/or XCB. Xlib bindings for node actually exist: https://github.com/mixu/nwm. Although I'm not sure whether it gives you access to the X clipboard, you might end up writing your own. You'll need separate bindings for window...
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Android SDK on a 64-bit linux machine

Is it possible to develop using the Android SDK on a 64-bit linux machine. The available SDK downloads seem to be just for 32-bit versions of Linux. ...
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How can I get all the request headers in Django?

... According to the documentation request.META is a "standard Python dictionary containing all available HTTP headers". If you want to get all the headers you can simply iterate through the dictionary. Which part of your code to do this depends on your exact requirement. Anypla...
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CSS3 background image transition

...ound-image 0.2s ease-in-out; This is supported natively by Chrome, Opera and Safari. Firefox hasn't implemented it yet (bugzil.la). Not sure about IE. share | improve this answer | ...
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Pandas - Get first row value of a given column

...2 There is a difference between df_test['Btime'].iloc[0] (recommended) and df_test.iloc[0]['Btime']: DataFrames store data in column-based blocks (where each block has a single dtype). If you select by column first, a view can be returned (which is quicker than returning a copy) and the origina...
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PHPUnit assert that an exception was thrown?

...s->setExpectedException(InvalidArgumentException::class); //...and then add your test code that generates the exception exampleMethod($anInvalidArgument); } } expectException() PHPUnit documentation PHPUnit author article provides detailed explanation on testing exception...
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Is there a way to make npm install (the command) to work behind proxy?

...t does not work. Trying to avoid manually downloading all require packages and installing. 29 Answers ...