Demonstrates how the splat operator works in Ruby.

splat.rb

lambda{|*args| args}.call(1, 2)
#=> [1, 2]
# This is the splat operator used in the 'collecting mode'.
# The splat before the args ensured that all arguments were marshalled into an Array.

[1, 2, [3, 4]]
#=> [1, 2, [3, 4]] 
[1, 2, *[3, 4]]
#=> [1, 2, 3, 4] 
# This is the unmarshalling 'mode' of the splat operator.
# Notice how [3, 4] was 'unwrapped' into only the list of elements inside.