a self-describing program

equality_in_ruby.rb

# The == comparison operator checks whether two values are equal.

true == true
  
'==' == '=='

# eql? checks if two values are equal and of the same type.

true.eql? true

"eql?".eql?("eql?")

# equal? checks if two things are one and the same object.

"equal?".equal?("equal?")

x = 'equal?' and x.equal?(x)

# How do I remember which is which ... The longer the operator, the more restrictive the test it performs.




# ---------

File.readlines(__FILE__).each do |line|
  break if line =~ /^# -----/
  puts line
  result = eval(line)
  puts "=> #{result}" unless result.nil?
end