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What is the 'cls' variable used for in Python classes?
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303
The distinction between "self" and "cls" is defined in PEP 8 . As Adrien said, this is not a ma...
Is a RelativeLayout more expensive than a LinearLayout?
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In a talk at Google I/O 2013 (Writing Custom Views for Android), Romain Guy clarified the misunderstanding that caused everyone to start using RelativeLayouts for everything. A RelativeLayout always has to do two measure passes. Overall it is negligi...
Literal notation for Dictionary in C#?
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answered Feb 12 '11 at 20:42
BoltClock♦BoltClock
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round() doesn't seem to be rounding properly
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102
I can't help the way it's stored, but at least formatting works correctly:
'%.1f' % round(n, ...
Where does VBA Debug.Print log to?
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edited Apr 30 '14 at 7:23
user2140173
answered May 26 '10 at 20:07
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Explicitly select items from a list or tuple
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list( myBigList[i] for i in [87, 342, 217, 998, 500] )
I compared the answers with python 2.5.2:
19.7 usec: [ myBigList[i] for i in [87, 342, 217, 998, 500] ]
20.6 usec: map(myBigList.__getitem__, (87, 342, 217, 998, 500))
22.7 usec: itemgetter(87, 342, 217, 998, 500)...
Why is 'this' a pointer and not a reference?
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180
When the language was first evolving, in early releases with real users, there were no reference...
What is the difference between 'content' and 'text'
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Gary KerrGary Kerr
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Example images for code and mark-up Q&As [closed]
...-gif
Solid BG
Animated dashed border as seen in this answer.
Details: 100x30 px with filled BG (no transparency)
Zooming stars as seen in this answer, originally developed as a 'screen-shot' of a screensaver.
Details: 160x120 px with filled BG (no transparency)
Animated Water as s...
Bash script absolute path with OS X
... [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"
}
realpath "$0"
This prints the path verbatim if it begins with a /. If not it must be a relative path, so it prepends $PWD to the front. The #./ part strips off ./ from the front of $1.
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