jsonb and where clause?

Hi.

Just starting to look at how to use jsonb columns and I have a question. I have found out that I can use the following
tosearch for a value inside
 
the jsonb column:

select * from orders where info ->> 'customer' = 'John Doe'    (where info is the jsonb column)


But what if the jsonb column contains an json array, how can I search then?

info -> [ { "customer" : "John Doe" } ]


btw, using PostgreSQL 9.6 but will be moving to 10 soon.


Regards,

BTJ