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Install Gem from Github Branch?
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You don't need to build the gem locally. In your gemfile you can specify a github source with a ref, branch or tag.
gem 'rails', :git => "git://github.com/rails/rails.git", :ref => "4aded"
gem 'rails', :git => "git://github.com/rails/rails.git", :branch => "2-3-stable"
gem 'rails'...
Why is the shovel operator (
...from the tap.
At the end of the day, you would have more glasses to clean if you choose to pick a new glass every time you needed to refill your glass.
The same applies to the shovel operator and the plus equal operator. Plus equal operator picks a new 'glass' every time it needs to refill its gla...
Fastest way to find second (third…) highest/lowest value in vector or column
...000
x = rnorm(N)
maxN <- function(x, N=2){
len <- length(x)
if(N>len){
warning('N greater than length(x). Setting N=length(x)')
N <- length(x)
}
sort(x,partial=len-N+1)[len-N+1]
}
microbenchmark::microbenchmark(
Rfast = Rfast::nth(x,5,descending = T...
Combine --user with --prefix error with setup.py install
...tall command as install --prefix=/usr/local. You have to override this specification using one of the techniques above.
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Create an empty object in JavaScript with {} or new Object()?
There are two different ways to create an empty object in JavaScript:
9 Answers
9
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avoid page break inside row of table
...side:avoid with table- its works, but I have so many rows,
then not work.
If set display of tr as block or some thing else then it change the formatting of table and insert double border.
Or it is possible to insert the table header on each page, where the table was splitted.
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Getting exact error type in from DbValidationException
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If you don't have a catch block, you can replace ex with $exception and get the same result.
– Ecyrb
Dec 22 '11 at 18:53
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How can I use map and receive an index as well in Scala?
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@ziggystar If you're looking for performance you need to trade off some immutability. Look inside the zipWithIndex function. It just uses a var to build a new collection of pairs. You could use the same method of incrementing a var with...
How to redirect stderr and stdout to different files in the same line in script?
...;> 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.
Just for completion's sake, you can write 1> as just > sinc...
Difference between namespace in C# and package in Java
What is the difference (in terms of use) between namespaces in C# and packages in Java?
6 Answers
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