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find -exec a shell function in Linux?
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find . | while read file; do dosomething "$file"; done
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SQL WHERE ID IN (id1, id2, …, idn)
...SQL engine doesn't immediately know that you want to check if the value is one of the values in a fixed list. However, a good SQL engine could optimize it to have equal performance like with IN. There's still the readability issue though...
Option 3 is simply horrible performance-wise. It sends a qu...
git: How to diff changed files versus previous versions after a pull?
...n want to know what changed between the last version of a file and the new one. Say I want to know what someone else committed to a particular file.
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jQuery autocomplete tagging plug-in like StackOverflow's input tags? [closed]
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Anyone looking for the most up to date version, documentation and more extensive examples of this amazing plugin should go here and fork away: github.com/aehlke/tag-it
– Crisman
Feb 21 '12 ...
Breaking out of nested loops [duplicate]
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Without the comments, this will be hard for anyone coming along later to understand.
– Eric Walker
Aug 28 '15 at 21:54
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php - get numeric index of associative array
... 'blue' => 'nice',
'car' => 'fast',
'number' => 'none'
);
var_dump(array_search('car', array_keys($a)));
var_dump(array_search('blue', array_keys($a)));
var_dump(array_search('number', array_keys($a)));
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Is it Pythonic to use list comprehensions for just side effects?
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It is very anti-Pythonic to do so, and any seasoned Pythonista will give you hell over it. The intermediate list is thrown away after it is created, and it could potentially be very, very large, and therefore expensive to create.
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indexOf method in an object array?
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I think you can solve it in one line using the map function:
pos = myArray.map(function(e) { return e.hello; }).indexOf('stevie');
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How do I create directory if none exists using File class in Ruby?
...ts (it just does nothing) so this solution can be compressed into this can one-liner plus a require statement: FileUtils.mkdir_p(File.dirname(some_path))
– Eureka
Sep 27 '12 at 10:43
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How exactly does the python any() function work?
...hich is a list of some items. If it contained [0, False, '', 0.0, [], {}, None] (which all have boolean values of False) then any(lst) would be False. If lst also contained any of the following [-1, True, "X", 0.00001] (all of which evaluate to True) then any(lst) would be True.
In the code you pos...