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R: Comment out block of code [duplicate]
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92
Most of the editors take some kind of shortcut to comment out blocks of code. The default edito...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
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32 Answers
32
Active
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Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...':
the_thing = 1
elif something == 'that':
the_thing = 2
elif something == 'there':
the_thing = 3
else:
the_thing = 4
2.py
something = 'something'
options = {'this': 1, 'that': 2, 'there': 3}
for i in xrange(1000000):
the_thing = options.get(someth...
Check number of arguments passed to a Bash script
...nts are valid. It allows a single argument or two.
[[ ($# -eq 1 || ($# -eq 2 && $2 == <glob pattern>)) && $1 =~ <regex pattern> ]]
For pure arithmetic expressions, using (( )) to some may still be better, but they are still possible in [[ ]] with its arithmetic operators...
Find all packages installed with easy_install/pip?
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edited Nov 2 '17 at 13:31
TheodorosPloumis
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Dynamically replace the contents of a C# method?
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220
Disclosure: Harmony is a library that was written and is maintained by me, the author of th...
Easy way to list node modules I have npm linked?
...symlinks, you could try something like find / -type d -name "node_modules" 2>/dev/null | xargs -I{} find {} -type l -maxdepth 1 | xargs ls -l.
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Warning: push.default is unset; its implicit value is changing in Git 2.0
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2154
It's explained in great detail in the docs, but I'll try to summarize:
matching means git p...
Scala @ operator
...variable. Consider the following, for instance:
val o: Option[Int] = Some(2)
You can easily extract the content:
o match {
case Some(x) => println(x)
case None =>
}
But what if you wanted not the content of Some, but the option itself? That would be accomplished with this:
o match {...