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Speed up Hash#transform_keys using Hash#each_key

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See https://gist.github.com/3007749 for justification
This commit is contained in:
Grant Hutchins 2012-06-27 20:09:30 -04:00
parent 692b64e3ac
commit f6bedc960d
1 changed files with 1 additions and 1 deletions
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2
activesupport/lib/active_support/core_ext/hash/keys.rb
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@ -7,7 +7,7 @@ class Hash
# # => { "NAME" => "Rob", "AGE" => "28" }
def transform_keys
result = {}
keys.each do |key|
each_key do |key|
result[yield(key)] = self[key]
end
result