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arlandism/functional.rb

Last active December 20, 2017 16:55
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functional.rb
def sum_with(list, &block)
  result = block.call(list)
  result.reduce(0) {|acc, n| acc += n}
end
def sum_doubles(list)
sum_with(list) {|n| n * 2}
end
def sum_triples(list)
sum_with(list) {|n| n * 3}
end
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