Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/options-lib/helpers.rb

Instance Method Summary collapse

Instance Method Details

#chunk(pieces = 2) ⇒ Object

Break the array into smaller arrays (chuncks) If the lenght of the array is not divisible by the number of chunks (pieces) then first chunk will accomodate the extra item and be the larger chunk Ex: [1,2,3,4].chunck # => [[1,2], [3,4]]



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# File 'lib/options-lib/helpers.rb', line 23

def chunk(pieces=2)
  len = self.length;
  mid = (len / pieces)
  chunks = []
  start = 0
  1.upto(pieces) do |i|
    last = start + mid
    last = last - 1 unless len % pieces >= i
    chunks << self[start..last] || []
    start = last + 1
  end
  chunks
end