assert_valid_keys(*valid_keys) Instance Public methods Validate all keys in

reverse_merge(other_hash) Instance Public methods Merges the caller into

deep_dup() Instance Public methods Returns a deep copy of hash.

deep_merge!(other_hash, &block) Instance Public methods Same as deep_merge

extractable_options?() Instance Public methods By default, only instances of

to_query(namespace = nil) Instance Public methods Returns a string representation

reverse_merge!(other_hash) Instance Public methods Destructive reverse_merge

to_xml(options = {}) Instance Public methods Returns a string containing an

compact() Instance Public methods Returns a hash with non nil values

transform_keys() Instance Public methods Returns a new hash with all keys converted