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Posted By

vanne on 05/15/08


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textmate ruby


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Array divide method

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  1. # orginal article : http://blog.jayfields.com/2007/09/ruby-arraychunk.html
  2.  
  3. class Array
  4.  
  5.   # divides an array into a smaller chunks
  6.   # [1,2,3,4].divide_by 2 # => [[1,2],[3,4]]
  7.   def divide_by(number_of_chunks)
  8.     chunks = (1..number_of_chunks).collect { [] }
  9.     self.each_with_index do |item, index|
  10.       chunks[index % number_of_chunks] << item
  11.     end
  12.     chunks
  13.   end
  14.  
  15.   alias / divide_by
  16.  
  17. end
  18.  

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