sudo gem install enumerable-proxy
require 'enumerable_proxy'
[1, 2, 3].proxy(:map) == 2 #=> [false, true, false]
[1, 2, 3].p(:map).to_s #=> ['1', '2', '3']
[1, 2, 3].pmap * 10 #=> [10, 20, 30]
#peach, pmap, pselect, preject, pall?, pany?, pdetect are all added to Array.
To get even more succinct, require enumerable_proxy/array_extensions and
it’ll alias_method_chain Array#map, each, etc so if they are called with no block,
they will return a proxy for their method.
require 'enumerable_proxy/array_extensions'
[1, 2, 3].map.to_s #=> ['1', '2', '3']
[1, 2, 3].map + 2 #=> [3, 4, 5]
(0..10).to_a.select < 5 #=> [0, 1, 2, 3, 4]