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What is the difference between setUp() and setUpClass() in Python unittest?

What is the difference between setUp() and setUpClass() in the Python unittest framework? Why would setup be handled in one method over the other? ...
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What does the C++ standard state the size of int, long type to be?

...es. I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler. 24 Answers ...
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What methods of ‘clearfix’ can I use?

...ut. My sidebar is floated, so my container div fails to wrap the content and sidebar. 29 Answers ...
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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?

... var a = [], // these are the same b = new Array(), // a and b are arrays with length 0 c = ['foo', 'bar'], // these are the same d = new Array('foo', 'bar'), // c and d are arrays with 2 strings // these are different: e = [3] // e.length =...
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Efficiency of purely functional programming

... Pippenger [1996], when comparing a Lisp system that is purely functional (and has strict evaluation semantics, not lazy) to one that can mutate data, an algorithm written for the impure Lisp that runs in O(n) can be translated to an algorithm in the pure Lisp that runs in O(n log n) time (based on ...
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Why Java needs Serializable interface?

We work heavily with serialization and having to specify Serializable tag on every object we use is kind of a burden. Especially when it's a 3rd-party class that we can't really change. ...
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Difference between a View's Padding and Margin

What is the difference between a View's Margin and Padding? 14 Answers 14 ...
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Pros and cons to use Celery vs. RQ [closed]

...ect that requires implement some background jobs (mostly for email sending and heavily database updates). I use Redis for task broker. So in this point I have two candidates: Celery and RQ . I had some experience with these job queues, but I want to ask you guys to share you experience of using t...
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How to get current time and date in C++?

Is there a cross-platform way to get the current date and time in C++? 24 Answers 24 ...
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Only detect click event on pseudo-element

...em, you can only bind to their parent elements. If you must have a click handler on the red region only, you have to make a child element, like a span, place it right after the opening <p> tag, apply styles to p span instead of p:before, and bind to it. ...