This proof of concept demonstrates a concise/elegant syntax for pipelining and method composition!

-9.pipe { abs | Math.sqrt | to_i } #=> 3

[9, 64].map(&Math.pipe.sqrt)           #=> [3.0, 8.0]
[9, 64].map(&Math.pipe.sqrt.to_i.to_s) #=> ["3", "8"]

"https://api.github.com/repos/ruby/ruby".pipe do
  URI.parse
  Net::HTTP.get
  JSON.parse.fetch("stargazers_count")
  yield_self { |n| "Ruby has #{n} stars" }
  Kernel.puts
end
#=> Ruby has 15120 stars

There’s been some recent discussions in the Ruby tracker related to method referencing and composition. The pipe_operator gem was created to propose an alternative syntax for this kind of behavior:

• #6284 - Add composition for procs
• #13581 - Syntax sugar for method reference
• #12125 - Shorthand operator for Object#method

Is this something that you’d like to see in Ruby core? Please share your opinions!