From: Emeka Patrick <lists@...>
Date: 2012-06-28T16:44:43+09:00
Subject: Is this the correct use of rand?

In the example below why was it necessary to put (max+1)? Couldn't that
result in the generation of a random number up to and including 50?

This code calls a code blocklimittimes, each time passing in a random
number betweenminandmax:

  def pick_random_numbers(min, max, limit)
    limit.times { yield min+rand(max+1) }
  end

This code is a wrapper method for pick_random_numbers. It calls a code
block 6 times, each time with a random number from 1 to 49:

  def lottery_style_numbers(&block)
    pick_random_numbers(1, 49, 6, &block)
  end


  lottery_style_numbers { |n| puts "Lucky number: #{n}" }

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