From: James Coglan <jcoglan@...>
Date: 2008-09-20T22:32:37+09:00
Subject: Re: [QUIZ] One-Liners Mashup (#177 again)

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>
> Ready? Here goes. First problem...
> You should know this pattern well:
>
>    > [:one, "two", 4] * 3
>    => [:one, "two", 4, :one, "two", 4, :one, "two", 4]
>
> Write a single line method on Array that does this instead:
>
>    > [:one, "two", 4].repeat(3)
>    => [:one, :one, :one, "two", "two", "two", 4, 4, 4]



module Enumerable
  def repeat(n = 1)
    map { |e| [e] * n }.inject { |a,b| a + b }
  end
end

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