instance method `transform_keys!`

Ruby on Rails 4.0.13

Since v4.0.13 Last seen in v5.2.8.1

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1

Compare with:

transform_keys!()

Destructively convert all keys using the block operations. Same as transform_keys but modifies self.

Source

# File activesupport/lib/active_support/core_ext/hash/keys.rb, line 18
  def transform_keys!
    keys.each do |key|
      self[yield(key)] = delete(key)
    end
    self
  end

Defined in activesupport/lib/active_support/core_ext/hash/keys.rb line 18 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Hash

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