How do I use the fetch method for nested hash?

Question

I have the following hash:

hash = {\'name\' => { \'Mike\' => { \'age\' => 10, \'gender\' => \'m\' } } }

I can access the age by:

Answer 1

If you don't want to monkey patch the standard Ruby class Hash use .fetch(x, {}) variant. So for the example above will look like that:

hash.fetch('name', {}).fetch('Mike', {}).fetch('age')