method

deep_transform_keys!

v4.0.2 - Show latest stable - 0 notes - Class: Hash

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What's this?

deep_transform_keys!(&block) public

Destructively convert all keys by using the block operation. This includes the keys from the root hash and from all nested hashes.

Show source

# File activesupport/lib/active_support/core_ext/hash/keys.rb, line 93
  def deep_transform_keys!(&block)
    keys.each do |key|
      value = delete(key)
      self[yield(key)] = value.is_a?(Hash) ? value.deep_transform_keys!(&block) : value
    end
    self
  end

deep_transform_keys!

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