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What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function

...stion, but I am trying to focus on best-practices as I learn, so I don't have to unlearn any 'bad' habits. 7 Answers ...
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Show AlertDialog in any position of the screen

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How do I specify a single test in a file with nosetests?

I have a file called test_web.py containing a class TestWeb and many methods named like test_something(). 6 Answers ...
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How do I typedef a function pointer with the C++11 using syntax?

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Why does Math.floor return a double?

Official Javadoc says that Math.floor() returns a double that is "equal to a mathematical integer", but then why shouldn't it return an int ? ...
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How to remove last n characters from every element in the R vector

I am very new to R, and I could not find a simple example online of how to remove the last n characters from every element of a vector (array?) ...
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How to implement a confirmation (yes/no) DialogPreference?

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Autowiring two beans implementing same interface - how to set default bean to autowire?

I have a Spring 2.5/Java/Tomcat application. There is the following bean, which is used throughout the application in many places ...
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Why is Scala's immutable Set not covariant in its type?

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What is the fundamental difference between WebSockets and pure TCP?

I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets? ...