which_ruby is a simple helper for checking running Ruby engines.
include WhichRuby in irb:
rvm use jruby
gem install which_ruby
irb
> require ‘which_ruby’
=> true
> include WhichRuby
=> Object
access the API:
> ruby_type
=> :jruby
> rt
=> :jruby
> is_ruby_type? :jruby
=> true
> r? :jruby
=> true
> jruby?
=> true
Run the examples with different runtimes, jruby for example:
rvm use jruby ruby examples/ex.rb
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