Just wondering if there's an idiom for this. Say I have an array "a",
each element is a hash:
a =[ {"a" => "eh", "b" => "bee"},
{"c" => "see", "d" => "dee"},
{"e" => "eee", "f" => "eff"}]
And I want to perform some sort of transformation on all the hash
values, but still end up with an array of the hashes.
Is there a cleaner (not necessarily shorter... I prefer elegantly
readable) way than:
a.each do |row|
row.each { |k,v| {row[k] => v.upcase }
end
I'm not convinced that's even guaranteed to work... the mutating of
the hash while it's being iterated over makes me uncomfortable. I
guess I could do something that felt safer (if not clunkier) by
building a new hash inside each iteration, and appending it to a new
array at the end of each iteration.
Any better approaches?
Thanks...
-glenn
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