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ruby inheritance vs mixins

... out the be the latter, module B, because you included it after module A. Now, it's easy to avoid this problem: make sure all of module A and module B's constants and methods are in unlikely namespaces. The problem is that the compiler doesn't warn you at all when collisions happen. I argue that ...
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What is the difference between YAML and JSON?

...k YAML will be a more robust and viable data serialization format. Right now, AJAX and other web technologies tend to use JSON. YAML is currently being used more for offline data processes. For example, it is included by default in the C-based OpenCV computer vision package, whereas JSON is not. ...
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What's “P=NP?”, and why is it such a famous question? [closed]

...ix multiplication, the basic operation is multiplication of two numbers. Now the question is, what does deterministic vs. non-deterministic mean? There is an abstract computational model, an imaginary computer called a Turing machine (TM). This machine has a finite number of states, and an infin...
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Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell

...ex + 1) (triangle + index + 1) main = print $ nextTriangle 1 1 EDIT: So now that we've explored that, lets address the questions Question 1: Do erlang, python and haskell lose speed due to using arbitrary length integers or don't they as long as the values are less than MAXINT? In Haske...
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Difference between initLoader and restartLoader in LoaderManager

...new loader completes its work) and then creates a new one. Thus said it's now clear when to use initLoader and when to use restartLoader and why it makes sense to have the two methods. initLoader is used to ensure there's an initialized loader. If none exists a new one is created, if one already ex...
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Calling filter returns [duplicate]

...ar with list comprehensions and generator expressions, the above filter is now (almost) equivalent to the following in python3.x: ( x for x in data if func(x) ) As opposed to: [ x for x in data if func(x) ] in python 2.x ...
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Convert PDF to clean SVG? [closed]

...ucted - you have to install vector fonts and look them up. UPDATE: I have now developed this into a package PDF2SVG which does not use Batik any more: which has been tested on a range of PDFs. It produces SVG output consisting of characters as one <svg:text> per character paths as <svg:...
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Fastest exit strategy for a Panic Button in Crisis/Abuse Websites? [closed]

... to that page, click the button, visit another page, then hit back, you're now on 54.186.79.95/decoywebsite and there's no record of you being on 54.186.79.95/, if cache is disabled, your server will see the "../decoywebsite" request and send a decoy page. Unfortunately, you can't modify the entire ...
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How to backup a local Git repository?

... + directory else unless $?.exitstatus == 0 then raise( 'fatal: unknown exit status from git-config: ' + $?.exitstatus ) end end # verify directory exists unless File::directory?( directory ) raise( 'fatal: backup directory does not exists: ' + directory ) end # The date and time p...
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How to destroy a DOM element with jQuery?

... $target variable itself, the object will escape the garbage collector for now. If you want to DESTROY it you also have to lose all references to it. I'm not quite sure why you'd want to DESTROY a DOM element though. Maybe you just hate $target. Poor $target, what did it ever do to you? ...