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How to wait for a keypress in R?
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This answer is similar to that of Simon's, but does not require extra input other than a newline.
cat("Press Enter to continue...")
invisible(scan("stdin", character(), nlines = 1, quiet = TRUE))
Using nlines=1 instead of n=1, the user can simply press enter to continue the Rscript.
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initializer_list and move semantics
...y made that so in order to allow initializer lists to contain for instance string constants, from which it would be inappropriate to move.
However, if you are in a situation where you know that the initializer list contains rvalue expressions (or you want to force the user to write those) then ther...
What are all codecs and formats supported by FFmpeg?
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Thank you very much llogan for those extra filtering options. Is it possible to further go, and for example ask FFMPEG to list all Encoders/Decoders that are only for Video, or only for Audio?
– spaceman
May 4 at 15:39
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How to exit a function in bash
...here are definitely solutions possible, but I just wanted to call out that extra care needs to be taken with set -e and returning non-zero values, as that caught me by surprise in the past.
– Yevgeniy Brikman
Jul 12 '19 at 21:19
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How to force IntelliJ IDEA to reload dependencies from build.sbt after they changed?
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[warn]
[warn] Note: Some unresolved dependencies have extra attributes. Check that these dependencies exist with the requested attributes.
[warn] org.jetbrains:sbt-structure:latest.integration (sbtVersion=0.13, scalaVersion=2.10)
I have opened a ticket at JetBrains.
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Get time difference between two dates in seconds
...act them and divide by 1000 (since it's originally in milliseconds). As an extra, when you're calling the getDate() method, you're in fact getting the day of the month as an integer between 1 and 31 (not zero based) as opposed to the epoch time you'd get from calling the getTime() method, representi...
Looping through the content of a file in Bash
...ine has less than three fields, the missing fields will be set to an empty string
# if the line has more than three fields, `field3` will get all the values, including the third field plus the delimiter(s)
done < input.txt
Reading from the output of another command, using process substitution...
What are major differences between C# and Java?
...t of the language syntax.
• C# allows switch statements to operate on strings.
• C# allows anonymous methods providing closure functionality.
• C# allows iterator that employs co-routines via a functional-style yield keyword.
• C# has support for output parameters, aiding in the ...
What is the difference between Reader and InputStream?
... makes your easier to internationalize and maintain.
Note: This is just an extra information for exploring Java I/O codes is that, the design pattern of Java I/O implementation follows decorator design pattern. If you familiar with decorator design pattern then you can easily catchup the implementat...
Merging 2 branches together in GIT
...mits into master branch (4 in master + 2 in feature_branch = total 6) + an extra merge commit something like 'Merge branch 'feature_branch'' as the master is diverged.
If you really need to ignore these commits (those made in FB) and add the whole changes made in feature_branch as a single commit ...