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pashagray/example_apply_on_set.rb

Created July 6, 2017 18:05
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example_apply_on_set.rb
def apply_on_set(arr, set_size, &block)
arr.each_cons(set_size).map { |set| yield(set) }
end
apply_on_set([1, 2, 3, 4], 2) { |set| set.reduce(:+) } #=> [3, 4, 7]
apply_on_set([1, 2, 3, 4], 3) { |set| set.reduce(:+) } #=> [6, 9]
apply_on_set([1, 2, 3, 4], 2) { |set| set.map(&:to_f) } #=> [[1.0, 2.0], [2.0, 3.0], [3.0, 4.0]]
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