Can you supply arguments to the map(&:method) syntax in Ruby?

Question

You\'re probably familiar with the following Ruby shorthand (a is an array):

a.map(&:method)

For example, try the followin

Answer 1

Instead of patching core classes yourself, as in the accepted answer, it's shorter and cleaner to use the functionality of the Facets gem:

require 'facets'
a = [1,3,5,7,9]
a.map &:+.(2)