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How to catch integer(0)?
...empty, cuz some functions return integer(0) instead of NA or NULL. But for now your way is the most straightforward, and works vector-wise which is a big advantage over length(a).
– Ufos
Feb 26 '18 at 9:54
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Shell - Write variable contents to a file
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Needs more quotes -- right now, any runs of whitespace within the variable's value will be converted to a single space, glob expressions will be expanded, etc.
– Charles Duffy
Jul 23 '12 at 19:54
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Absolute positioning ignoring padding of parent
...: inherit and your Absolute element will get the padding it needs. Don't know why this has more upvotes than the right answer ... :P
– NotaGuruAtAll
Dec 18 '16 at 17:50
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C fopen vs open
...incorrect and confusing because it isn't very much like the others. I will now proceed to ignore it because the important distinction here is between a C standard FILE * and an OS-specific file descriptor.
There are four main reasons to use fopen instead of open.
fopen provides you with buffering...
How to get a list of installed android applications and pick one to run
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@DavidT. I already figured it out. Now, I'm working on how can I access those installed app in order to create a shortcut inside my App. Is that possible?
– androidBoomer
Jan 24 '14 at 1:35
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What is a singleton in C#?
...plementing the Singleton Pattern in C#" covering most of what you need to know - including some good advice regarding thread safety.
To be honest, It's very rare that you need to implement a singleton - in my opinion it should be one of those things you should be aware of, even if it's not used too...
SQL SELECT speed int vs varchar
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@RobertMunteanu Hey Robert, apologies I know this is an old post but can I kindly check...on the following: in order to query integers, i have to link each string column to another table (relationship). however, that means more joining operations are required for ea...
Can Mockito capture arguments of a method called multiple times?
...ic method Matchers.argThat(ArgumentMatcher). With the help of Java 8 it is now much cleaner and more readable to write:
verify(mockBar).doSth(argThat((arg) -> arg.getSurname().equals("OneSurname")));
verify(mockBar).doSth(argThat((arg) -> arg.getSurname().equals("AnotherSurname")));
If you'...
How To Format A Block of Code Within a Presentation? [closed]
...s work across Visual Studio to other Microsoft products though so I don't know if it will be any help.
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Convert java.time.LocalDate into java.util.Date type
...il.Date
The code might look as follows:
LocalDate localDate = LocalDate.now();
Date date = new Date(localDate.atStartOfDay(ZoneId.of("America/New_York")).toEpochSecond() * 1000);
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