&method

gistfile1.rb

[1,2,3].each(&method(:puts)) # & creates a block from a proc, Method has a to_proc method. This is a shortcut for [1,2,3].each(&method(:puts).to_proc)

[1, 2, 3].map(&2.method(:*))
# => [2, 4, 6]

p = method(:puts)
[1,2,3].tap(&p).inject(&:+) # if you need to print something in the middle of a call chain

#something else:
>> (1..10).zip(11..20).map{|x, y| x+y}
[
    [0] 12,
    [1] 14,
    [2] 16,
    [3] 18,
    [4] 20,
    [5] 22,
    [6] 24,
    [7] 26,
    [8] 28,
    [9] 30
]

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