Blocks

Blocks Transformations

Map, filter, and reduce collections with blocks.

Reference

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Sourceupstream/blocks/transformations.vibe
def double_each(pledges: array<int>) -> array<int>
  pledges.map { |pledge|
    pledge * 2
  }
end

def select_large_donations(
  donations: array<{ id: string, amount: money }>
) -> array<{ id: string, amount: money }>
  donations.select { |donation|
    donation["amount"] > money("50.00 USD")
  }
end

def total_scores(scores: array<int>) -> int
  scores.reduce(0) { |running_total, score|
    running_total + score
  }
end

def run -> { doubled: array<int>, total: int }
  {
    doubled: double_each([10, 20, 30]),
    total: total_scores([100, 200, 300])
  }
end

Output

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