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Why are trailing commas allowed in a list?
...['manny',
'mo',
'jack',
+ 'roger',
]
This beats the more confusing multi-line diff when the trailing comma was omitted:
s = ['manny',
'mo',
- 'jack'
+ 'jack',
+ 'roger'
]
The latter diff makes it harder to see that only one line was added and that ...
Python argparse: Make at least one argument required
...
I know this is old as dirt, but the way to require one option but forbid more than one (XOR) is like this:
parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('-process', action='store_true')
group.add_argument('-upload', action='store...
Programmatically scroll a UIScrollView
...eated timer, then -setContentOffset:animated: when the timer fires.
But a more efficient approach is to use 2 image views and swap them using transitions or simply switching places when the timer fires. See iPhone Image slideshow for details.
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Adding Http Headers to HttpClient
...formance, you shouldn't instantiate an HTTP client like this. You can read more about this here stackoverflow.com/a/15708633/1406930
– ScottBurfieldMills
Nov 18 '18 at 20:27
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In C, do braces act as a stack frame?
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Getting “unixtime” in Java
...hough lower case "l" looks a heck of a lot like the digit "1" so it's much more readable to use capital "L".
– John M
Jul 18 '14 at 15:38
1
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Get last dirname/filename in a file path argument in Bash
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On my Mac, using substring notation is more than order of magnitude faster than dirname / basename for the case where you're doing something trivial to each of a few thousand files.
– George
Jun 26 '14 at 1:24
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How to get the groups of a user in Active Directory? (c#, asp.net)
... .NET Framework 3.5
Update: older MSDN magazine articles aren't online anymore, unfortunately - you'll need to download the CHM for the January 2008 MSDN magazine from Microsoft and read the article in there.
Basically, you need to have a "principal context" (typically your domain), a user princip...
How to add reference to a method parameter in javadoc?
Is there a way to add references to one or more of a method's parameters from the method documentation body?
Something like:
...