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How do I convert an integer to binary in JavaScript?
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526
function dec2bin(dec){
return (dec >>> 0).toString(2);
}
dec2bin(1); // 1
dec2...
Generate all permutations of a list without adjacent equal elements
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12 Answers
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Find indices of elements equal to zero in a NumPy array
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228
numpy.where() is my favorite.
>>> x = numpy.array([1,0,2,0,3,0,4,5,6,7,8])
>>&...
What is the Ruby (spaceship) operator?
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TonyArraTonyArra
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Converting bytes to megabytes
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Traditionally by megabyte we mean your second option -- 1 megabyte = 220 bytes. But it is not correct actually because mega means 1 000 000. There is a new standard name for 220 bytes, it is mebibyte (http://en.wikipedia.org/wiki/Mebibyte) and it gathers popularity.
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How can I pipe stderr, and not stdout?
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First redirect stderr to stdout — the pipe; then redirect stdout to /dev/null (without chang...
What is the best way to convert an array to a hash in Ruby
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NOTE: For a concise and efficient solution, please see Marc-André Lafortune's answer below.
Th...
How to uninstall Python 2.7 on a Mac OS X 10.6.4?
I want to completely remove Python 2.7 from my Mac OS X 10.6.4. I managed to remove the entry from the PATH variable by reverting my .bash_profile . But I also want to remove all directories, files, symlinks, and entries that got installed by the Python 2.7 install package. I've got the install p...
Assign multiple columns using := in data.table, by group
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2 Answers
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