Method: ActiveSupport::CoreExtensions::Array::Grouping#split

Defined in:
lib/active_support/core_ext/array/grouping.rb

#split(value = nil, &block) ⇒ Object

Divides the array into one or more subarrays based on a delimiting value or the result of an optional block.

[1, 2, 3, 4, 5].split(3)                # => [[1, 2], [4, 5]]
(1..10).to_a.split { |i| i % 3 == 0 }   # => [[1, 2], [4, 5], [7, 8], [10]]



47
48
49
50
51
52
53
54
55
56
57
58
59
 
# File 'lib/active_support/core_ext/array/grouping.rb', line 47

def split(value = nil, &block)
  block ||= Proc.new { |e| e == value }

  inject([[]]) do |results, element|
    if block.call(element)
      results << []
    else
      results.last << element
    end

    results
  end
end