module ReactOnRails::Utils

def self.rails_version_less_than(version)
  @rails_version_less_than ||= {}
  return @rails_version_less_than[version] if @rails_version_less_than.key?(version)
  @rails_version_less_than[version] = begin
    Gem::Version.new(Rails.version) < Gem::Version.new(version)
  end
end