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What does the (unary) * operator do in this Ruby code?
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answered May 27 '09 at 23:27
molfmolf
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Does git return specific return error codes?
...iled; fix conflicts and then commit the result.
$ echo $?
1
Git returns 0 when it merges correctly, as expected.
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Random row selection in Pandas dataframe
...me(x, n):
return x.ix[random.sample(x.index, n)]
Note: As of Pandas v0.20.0, ix has been deprecated in favour of loc for label based indexing.
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Using str_replace so that it only acts on the first match?
... T.Todua
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answered Aug 10 '09 at 0:43
karim79karim79
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How to change colors of a Drawable in Android?
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I think you can actually just use Drawable.setColorFilter( 0xffff0000, Mode.MULTIPLY ). This would set white pixels to red but I don't think it would affect the transparent pixels.
See Drawable#setColorFilter
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Can I set background image and opacity in the same property?
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Two methods:
Convert to PNG and make the original image 0.2 opacity
(Better method) have a <div> that is position: absolute; before #main and the same height as #main, then apply the background-image and opacity: 0.2; filter: alpha(opacity=20);.
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How to convert boost path type to string?
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answered Nov 14 '10 at 19:51
icecrimeicecrime
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Python Pandas merge only certain columns
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edited Oct 27 '15 at 7:05
beroe
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answered Jul ...
How to handle more than 10 parameters in shell
I am using bash shell on linux and want to use more than 10 parameters in shell script
2 Answers
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How to calculate time in hours between two dates in iOS
...enDates = [date1 timeIntervalSinceDate:date2];
double secondsInAnHour = 3600;
NSInteger hoursBetweenDates = distanceBetweenDates / secondsInAnHour;
See, the apple reference library http://developer.apple.com/library/mac/navigation/
or if you are using Xcode just select help/documentation from th...