Created
December 3, 2018 07:45
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flatten array
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| def flatten(array, flatten_array = []) | |
| array.each do |element| | |
| if element.instance_of?(Array) | |
| flatten(element, flatten_array) | |
| else | |
| flatten_array << element | |
| end | |
| end | |
| flatten_array | |
| end |
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