Fastlane, Ruby, constants, and functions

Fastfile

#
# Proper version
#
WRAP_EMOJI = "🌯"

lane :test do |options|
  UI.message wrap_in_emoji("Hello, World!")
end

def wrap_in_emoji(string)
  "#{WRAP_EMOJI} #{string} #{WRAP_EMOJI}"
end

#
# Version that doesn't work because of variables vs constants in the scope of a
# function
#
# wrap_emoji = "🌯"
#
# lane :test do |options|
#   UI.message wrap_in_emoji("Hello, World!")
# end
#
# def wrap_in_emoji(string)
#   "#{wrap_emoji} #{string} #{wrap_emoji}"
# end

#
# Version that works because of instance variables, but that's not appropriate
# in this case because the value is not an instance variable
#
# @wrap_emoji = "🌯"
#
# lane :test do |options|
#   UI.message wrap_in_emoji("Hello, World!")
# end
#
# def wrap_in_emoji(string)
#   "#{@wrap_emoji} #{string} #{@wrap_emoji}"
# end