Scaruby compose/and_then example

example.rb

require 'scaruby/core_ext'

hello = lambda { 'Hello!' }
twice = lambda { |x| x * 2 }
twice.compose(hello).apply() # or call()
hello.and_then(twice).apply()

cap = lambda { |x| x.capitalize }
twice.compose(cap).apply('ruby!')
cap.and_then(twice).apply('ruby!')

Gemfile

source "http://rubygems.org/"

gem 'scaruby'