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jordelver/gist:6a375a1bf27c63cb0b5a

Created October 8, 2014 16:22
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Ruby yield as a default parameter
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gistfile1.md

Learnt this from Avdi Grimm's Ruby Tapas

def content_for(tag, content = yield)
  "<%s>%s</%s>" % [tag, content, tag]
end

content_for("p", "hi")
=> "<p>hi</p>"

content_for("p") { "hi" }
=> "<p>hi</p>"
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