method

merge!

Ruby on Rails latest stable (v7.1.3.2) - 0 notes - Class: ActiveSupport::XmlMini_REXML

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What's this?

merge!(hash, key, value) private

Adds a new key/value pair to an existing Hash. If the key to be added already exists and the existing value associated with key is not an Array, it will be wrapped in an Array. Then the new value is appended to that Array.

hash	Hash to add key/value pair to.
key	Key to be added.
value	Value to be associated with key.

Show source

# File activesupport/lib/active_support/xml_mini/rexml.rb, line 103
      def merge!(hash, key, value)
        if hash.has_key?(key)
          if hash[key].instance_of?(Array)
            hash[key] << value
          else
            hash[key] = [hash[key], value]
          end
        elsif value.instance_of?(Array)
          hash[key] = [value]
        else
          hash[key] = value
        end
        hash
      end

merge!

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