cheat sheets.

ruby: send('method', arg)
  io: perform("slot", arg)

ruby: respond_to? 'method'
  io: hasSlot("slot")

ruby: object.something if object.respond_to? :something
  io: object ?something

ruby: methods
  io: slotNames

ruby: method_missing
  io: forward

ruby: inspect
  io: slotSummary

ruby: puts method(:blah).to_ruby
  io: getSlot("blah") code print

ruby: extend Module
  io: appendProto(Module clone)

ruby: require 'file'
  io: doFile('file.io')

ruby: dudes.map { |dude| dude.name }
  io: dudes map(dude, dude name)

ruby: dudes.map(&:name)
  io: dudes map(name)

ruby: longest = tasks.map { |task| task.name.size }.max 
  io: longest := tasks map(name size) max

ruby: dudes.each { |dude| puts " #{dude.name}" }
  io: dudes foreach(dude, writeln(" ", dude name))

ruby: dudes.each_with_index { |dude,i| puts " #{dude.name}" }
  io: dudes foreach(i, dude, writeln(" ", dude name))

ruby: dudes.select { |dude| dude.age < 32 }
  io: dudes select(dude, dude age < 32)        

ruby: dudes.select { |dude| dude.age < 32 }
  io: dudes select(age < 32)