Created
February 2, 2015 00:08
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for emma
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| h = { a: nil, b: :c, c: nil } | |
| result = h.keys.reduce([]) do |acc, k| | |
| if h[k].nil? | |
| acc << k unless acc.include? k | |
| else | |
| acc << h[k] | |
| acc << k | |
| end | |
| acc | |
| end |
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