method
dig

dig(*args)
public
Extracts the nested value specified by the sequence of key objects by calling dig at each step, returning nil if any intermediate step is nil.
Foo = Struct.new(:a) f = Foo.new(Foo.new({b: [1, 2, 3]})) f.dig(:a, :a, :b, 0) # => 1 f.dig(:b, 0) # => nil f.dig(:a, :a, :b, :c) # TypeError: no implicit conversion of Symbol into Integer