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How to get all subsets of a set? (powerset)

...f you're looking for a quick answer, I just searched "python power set" on google and came up with this: Python Power Set Generator Here's a copy-paste from the code in that page: def powerset(seq): """ Returns all the subsets of this set. This is a generator. """ if len(seq) <=...
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AsyncTask Android example

... As an addendum and google seeder (and coming from someone currently learning this stuff which is how I came across this) : the majority of UI updates you'll do for something where you need progress reported back to the user is in the call back...
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Shorten string without cutting words in JavaScript

... Awesome, i literally googled this question a million ways and could only find a working version for php nothing close to this and involving loops. – Josh Bedo Mar 28 '11 at 3:20 ...
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Do I need to disable NSLog before release Application?

...e answers sugest a solution but not explain the problem. I did a search in google, and found the reason. Here is my answer: Yes, if you comment out NSLog in your release version, the performance will become better. Because NSLog is pretty slow. Why? NSLog will do two things 1) write log messages to...
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URL rewriting with PHP

...1 and /download/684. Also, it's considered very bad practice (and gets you Google PR penalized!) if not all randomly generated URLs properly return 404. – Niels Keurentjes May 5 '13 at 21:12 ...
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Which machine learning classifier to choose, in general? [closed]

...-463. Searching the Amazon preview for the word "discriminative" (probably google books also) will let you see the pages in question. These two pages are the greatest gem I have found in this book. In short: Boosting - often effective when a large amount of training data is available. Random tree...
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Getting a map() to return a list in Python 3.x

... It's called a list comprehension. You can find plenty of information on Google, but here's the link to the Python (2.6) documentation on list comprehensions. You might be more interested in the Python 3 documenation, though. ...
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What is difference between MVC, MVP & MVVM design pattern in terms of coding c#

If we search Google using the phrase "What is difference between MVC, MVP & MVVM design pattern" then we may get few URL's which discuss the difference between MVC MVP & MVVM design pattern theoretically like : ...
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How to generate a random number in C++?

... This is an old answer, but it shows up when you google "C++ random number generation". It is poor advice for C++ programmers, because it advises you use rand() and srand(). Can you update it? – Yakk - Adam Nevraumont Jun 3 at 14:37 ...
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Unit testing void methods?

...ed strings. The second one is slightly tricky.. you can either use a Mock (google or search stackoverflow on mocking frameworks) to mimic the DB or hit the actual DB and verify if the strings were inserted in the right location. Check this thread for some good books... I'd recomment Pragmatic Unit T...