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Created August 22, 2012 12:37
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Object#presence
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gistfile1.md

object.presence is equivalent to object.present? ? object : nil

Use

region = params[:state].presence || params[:country].presence || 'US'

instead

state   = params[:state]   if params[:state].present?
country = params[:country] if params[:country].present?
region  = state || country || 'US'
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