Javascript-like working with Hash in Ruby (HACK)

js-getters.rb

# Add javascript-like functionality to Hash:
# write hash.prop instead of hash['prop']
#
# NB: Your keys must NOT be named like standard methods of Hash
# In such case, use normal notation, e.g. hash['key']
#
# So it is kinda dangerous hack!
class Hash
  def method_missing(meth, *args)
    method = meth.to_s # Symbol -> String
    if method.end_with? '='
      self[method.chop] = *args
    else
      self[method]
    end
  end
end

data = { 'alpha' => 1, 'beta' => 2 }

# Reading
puts data['alpha']  # => 1
puts data.alpha     # => 1

# Writing
data['beta'] = 8
puts data['beta']  # => 8
data.beta = 10
puts data.beta     # => 10

# Reading non-existing
puts data['gamma'].inspect # => nil
puts data.gamma.inspect    # => nil

# Writing  non-existing
data.gamma = 42
puts data.gamma   # 42