Top "Jruby" questions

JRuby is an open-source Java implementation of the Ruby programming language.

How do you round a float to 2 decimal places in JRuby?

How do you round a float to 2 decimal places in JRuby(1.6.x)? number = 1.1164 number.round(2) # The above shows the following …

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Can we use Ruby on Rails to develop a mobile app?

Since Rails uses MVC architecture. I was wondering that if we can use Rails to develop a mobile app or …

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JRuby on Rails vs. Ruby on Rails, what's difference?

I'm looking to try out JRuby and JRuby on Rails. I'm having trouble finding information on what's difference between JRuby …

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SASS implementation for Java?

I'm looking for SASS implementation in Java (could be used with JSP/JSF). For Python I've found CleverCSS, but there …

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What's the difference between Ruby and JRuby?

Can anyone please provide me in layman's terms the difference between developing a JRuby and a Ruby, Rails application? I …

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How to make JRuby 1.6 default to Ruby 1.9?

what is the best way to make JRuby to run in 1.9 mode by default? i.e, I want to run …

jruby
Which is faster: MRI Ruby or JRuby?

If I am using Ruby on Rails, should I install MRI/YARV Ruby or JRuby? Which is faster?

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Visit method not found in my rspec

My java web application is running on tomcat at http://localhost:8080/ Writing my first spec, home_spec: require 'spec_helper' …

ruby-on-rails rspec jruby
Undefined method `bytesize' for #<Hash>

I'd like to store and update blogger labels to datastore in GAE. When I run that code, I get this …

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convert array of hashes to csv file

How do you convert an array of hashes to a .csv file? I have tried CSV.open("data.csv", "wb") …

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