Module: RecursiveHashUtils

Defined in:
lib/recursive-hash-utils.rb

Overview

Helper methods to recursively modify Hash objects

Author:

Class Method Summary collapse

Class Method Details

.convert_string_keys_to_symbols(hash) ⇒ Object

Recursively convert all string keys in a Hash to symbol keys. Will recurse through nested Hash and Array objects.



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# File 'lib/recursive-hash-utils.rb', line 6

def self.convert_string_keys_to_symbols hash
  s2s = lambda do |h|
    if Hash === h
      Hash[
        h.map do |k, v|
          [k.respond_to?(:to_sym) ? k.to_sym : k, s2s[v]]
        end
      ]
    elsif Array === h
      hash_array = []
      h.each do |val|
        hash_array.push s2s[val]
      end

      hash_array
    else
      h
    end
  end

  s2s[hash]
end