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Flatten An Array
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| def flatten(ary) | |
| ret = [] | |
| ary.each do |sub_ary| | |
| if sub_ary.is_a?(Array) | |
| ret += flatten(sub_ary) | |
| else | |
| ret << sub_ary | |
| end | |
| end | |
| ret | |
| end |
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