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Combine #10

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@rap1ds rap1ds commented Aug 23, 2014

combine([maybes])

With combine you can create a new Maybe which includes an array of values from combined Maybes. If any of the combined Maybes is a None, a None will be returned.

mparams = Maybe(params)

duration = Maybe
  .combine(mparams[:start_date], mparams[:end_date])
  .map { |(start, end)| Date.parse(end) - Date.parse(start) }
  .get_or_else "Unknown"

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