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Created March 7, 2016 18:14
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upcasing recursively
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recursive_upcase.rb
a = [ "foo", "bar", ["bax", ["quux", "yay"]]]
def recurse_upcase arr
arr.inject([]){
|arr1, v|
arr1.push(v.kind_of?(Array) ? recurse_upcase(v) : v.upcase); arr1
}
end
p recurse_upcase(a)
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