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Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...open("echo -n hi", \
shell=True, stdout=subprocess.PIPE).communicate()[0])
As for the b preceding the string it indicates that it is a byte sequence which is equivalent to a normal string in Python 2.6+
http://docs.python.org/3/reference/lexical_analysis.html#literals
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When is memoization automatic in GHC Haskell?
...situations. For example, consider the function
f = \x -> let y = [1..30000000] in foldl' (+) 0 (y ++ [x])
GHC might notice that y does not depend on x and rewrite the function to
f = let y = [1..30000000] in \x -> foldl' (+) 0 (y ++ [x])
In this case, the new version is much less effici...
How do you set the text in an NSTextField?
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Anoop Vaidya
45.1k1313 gold badges103103 silver badges132132 bronze badges
answered May 15 '10 at 20:04
Ken AspeslaghKen Aspeslagh
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Int to Char in C#
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(char)myint;
for example:
Console.WriteLine("(char)122 is {0}", (char)122);
yields:
(char)122 is z
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Capitalize first letter. MySQL
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edited Nov 24 '10 at 3:56
answered Nov 24 '10 at 3:45
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How to do Mercurial's 'hg remove' for all missing files?
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answered Mar 9 '10 at 20:35
mfperzelmfperzel
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How to use git bisect?
...ression. Imagine that you have the following development history:
... --- 0 --- 1 --- 2 --- 3 --- 4* --- 5 --- current
You know that your program is not working properly at the current revision, and that it was working at the revision 0. So the regression was likely introduced in one of the commi...
Ways to save enums in database
...own = 4,
Heart = 1,
Club = 3,
Diamond = 2,
Spade = 0 }
in order to maintain the legacy numerical values stored in the database.
How to sort them in the database
The question comes up: lets say i wanted to order the values. Some people may want to sort them by the enum's o...
What is the default initialization of an array in Java?
...hing that holds an object) that is null.
For int/short/byte/long that is a 0.
For float/double that is a 0.0
For booleans that is a false.
For char that is the null character '\u0000' (whose decimal equivalent is 0).
When you create an array of something, all entries are also zeroed. So your arra...
Javascript split regex question
...any character (dots are wildcard characters in regular expressions). With "02-25-2010", it would split each time "-2" is encountered, because the dash matches and the dot matches "2".
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