"One-liner" (kind of) Ruby:
def alphabet_position(str) str.downcase.split('').select { |c| c =~ /[a-z]/ }.map { |c| c.ord - 96 }.join(' ') end
def alphabet_position(str) str.downcase.gsub(/[^a-z]/, '').split('').map{|c| c.ord - 96}.join(' ') end
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"One-liner" (kind of) Ruby: