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Hashing a dictionary?
For caching purposes I need to generate a cache key from GET arguments which are present in a dict.
11 Answers
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Statistics: combinations in Python
I need to compute combinatorials (nCr) in Python but cannot find the function to do that in math , numpy or stat libraries. Something like a function of the type:
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Can I get the name of the currently running function in JavaScript?
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In ES5 and above, there is no access to that information.
In older versions of JS you can get it by using arguments.callee.
You may have to parse out the name though, as it will probably include some extra junk. Though, in...
How to use gitignore command in git
I'm working first time on git. I have pushed my branch on github and it pushed all the library and documents into the github. Now what can I do and how can I use gitignore command to avoid the same mistake again.
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Group by multiple columns in dplyr, using string vector input
I'm trying to transfer my understanding of plyr into dplyr, but I can't figure out how to group by multiple columns.
9 Answ...
How can I pair socks from a pile efficiently?
Yesterday I was pairing the socks from the clean laundry and figured out the way I was doing it is not very efficient. I was doing a naive search — picking one sock and "iterating" the pile in order to find its pair. This requires iterating over n/2 * n/4 = n 2 /8 socks on average.
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The Use of Multiple JFrames: Good or Bad Practice? [closed]
I'm developing an application which displays images, and plays sounds from a database. I'm trying to decide whether or not to use a separate JFrame to add images to the database from the GUI.
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How can I show line numbers in Eclipse?
How can I show line numbers by default in Eclipse?
16 Answers
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What is a “feature flag”?
... of your application on/off at easily:
perhaps via a re-deploy, or
some internal page where pages/features can be toggled live.
I guess the example there was that it's handy to have the control to reduce the feature-set somewhat if you need to, say, reduce db queries if the load is too high.
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What is exactly the base pointer and stack pointer? To what do they point?
Using this example coming from wikipedia, in which DrawSquare() calls DrawLine(),
8 Answers
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