Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/model_grinder/ruby_hacks.rb

Overview

:nodoc: all

Instance Method Summary collapse

Instance Method Details

#sample(num = 1) ⇒ Object

:



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# File 'lib/model_grinder/ruby_hacks.rb', line 3

def sample(num = 1) #:
  ret = []
  already_picked = []
  (1..num).each { |i|
    break if i > length
    i2 = rand(length - 1)
    while already_picked.include?(i2)
      i2 = rand(length - 1)
    end
    already_picked << i2
    ret << self[i2]
  }
  ret
end