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kylewelsby/common.rb

Created June 14, 2013 13:49
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Find common items within two arrays.
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common.rb
a1 = ["html", "body", "ul", "li", "a"]
a2 = ["html", "body", "ul", "li", "p"]
a1.zip(a2).map{|n| n.first if n.first == n.last}.compact
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