diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/hash/keys.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/hash/keys.rb | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb index bdf196ec3d..7d3495db2c 100644 --- a/activesupport/lib/active_support/core_ext/hash/keys.rb +++ b/activesupport/lib/active_support/core_ext/hash/keys.rb @@ -1,35 +1,6 @@ # frozen_string_literal: true class Hash - # Returns a new hash with all keys converted using the +block+ operation. - # - # hash = { name: 'Rob', age: '28' } - # - # hash.transform_keys { |key| key.to_s.upcase } # => {"NAME"=>"Rob", "AGE"=>"28"} - # - # If you do not provide a +block+, it will return an Enumerator - # for chaining with other methods: - # - # hash.transform_keys.with_index { |k, i| [k, i].join } # => {"name0"=>"Rob", "age1"=>"28"} - def transform_keys - return enum_for(:transform_keys) { size } unless block_given? - result = {} - each_key do |key| - result[yield(key)] = self[key] - end - result - end unless method_defined? :transform_keys - - # Destructively converts all keys using the +block+ operations. - # Same as +transform_keys+ but modifies +self+. - def transform_keys! - return enum_for(:transform_keys!) { size } unless block_given? - keys.each do |key| - self[yield(key)] = delete(key) - end - self - end unless method_defined? :transform_keys! - # Returns a new hash with all keys converted to strings. # # hash = { name: 'Rob', age: '28' } |