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How expensive is the lock statement?
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Here is an article that goes into the cost. Short answer is 50ns.
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What's the best way to develop a sideswipe menu like the one in Facebook's new iOS app?
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+50
I recently came across this, didn't actually look at the code or test the control, but looks like it may be a very decent starting poi...
How to include PHP files that require an absolute path?
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answered Aug 7 '08 at 4:20
Peter CoultonPeter Coulton
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How to retrieve the first word of the output of a command in bash?
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Awk is a good option if you have to deal with trailing whitespace because it'll take care of it...
scale Image in an UIButton to AspectFit?
...ze.width;
CGFloat targetHeight = targetSize.height;
CGFloat scaleFactor = 0.0;
CGFloat scaledWidth = targetWidth;
CGFloat scaledHeight = targetHeight;
CGPoint thumbnailPoint = CGPointMake(0.0,0.0);
if (!CGSizeEqualToSize(imageSize, targetSize)) {
CGFloat widthFactor = targetWidth / width...
How to group time by hour or by 10 minutes
...AY, DT.[Date]),
DATEPART(HOUR, DT.[Date]),
(DATEPART(MINUTE, DT.[Date]) / 10)
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Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo
I'm using Maven 3.0.3, JUnit 4.8.1, and Jacoco 0.6.3.201306030806, and I am trying to create test coverage reports.
16 Answ...
Windows batch files: .bat vs .cmd?
...RRORLEVEL
only on errors.
In other words, if ERRORLEVEL is set to non-0 and then you run one of those commands, the resulting ERRORLEVEL will be:
left alone at its non-0 value in a .bat file
reset to 0 in a .cmd file.
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Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
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edited Apr 20 '11 at 12:22
answered Apr 20 '11 at 12:01
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Difference between Dictionary and Hashtable [duplicate]
...ing (and compile-time verification)
use without boxing
If you are .NET 2.0 or above, you should prefer Dictionary<TKey,TValue> (and the other generic collections)
A subtle but important difference is that Hashtable supports multiple reader threads with a single writer thread, while Dictiona...