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In Intellij, how do I toggle between camel case and underscore spaced?
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191
I use a plugin called String Manipulation which has the capabilities you're looking for (and m...
How to redirect stderr and stdout to different files in the same line in script?
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Just add them in one line command 2>> error 1>> output
However, note that >> is for appending if the file already has data. Whereas, > will overwrite any existing data in the file.
So, command 2> error 1> output if you do not want to append.
Ju...
Checking for the correct number of arguments
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218
#!/bin/sh
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
echo "Usage: $0 DIRECTORY" >&2
ex...
Order data frame rows according to vector with specific order
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Try match:
df <- data.frame(name=letters[1:4], value=c(rep(TRUE, 2), rep(FALSE, 2)))
target <- c("b", "c", "a", "d")
df[match(target, df$name),]
name value
2 b TRUE
3 c FALSE
1 a TRUE
4 d FALSE
It will work as long as your target contains exact...
Overload constructor for Scala's Case Classes?
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190
Overloading constructors isn't special for case classes:
case class Foo(bar: Int, baz: Int) {...
Asterisk in function call
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182
* is the "splat" operator: It takes a list as input, and expands it into actual positional arg...
How to get a substring of text?
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edited Aug 17 '12 at 10:25
answered May 31 '11 at 8:14
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How can I get nth element from a list?
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156
Look here, the operator used is !!.
I.e. [1,2,3]!!1 gives you 2, since lists are 0-indexed.
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How do I convert a float number to a whole number in JavaScript?
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15 Answers
15
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How to get default gateway in Mac OSX
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191
You can try with:
route -n get default
It is not the same as GNU/Linux's route -n (or even ip...