[chef] Hash magic in recipe

[howard chen < >]

Hi

Not a direct chef related question, but some how I found it is interesting.

Q. In the recipe, I would able to use the node as the following ways


 node[:myapp][:app_name]
 node['myapp'][:app_name]
 node[:myapp]['app_name']

Both are valid..May I ask what kind of magic is being used to achieve this?

Thanks.