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322711 (7) [Avatar] Offline
#1
In section 3.4.3 on page 90 of the print version of the book, a closing parenthesis is missing:

The function Enum.each/2 takes an enumerable (in this case, a list)
sjuric (109) [Avatar] Offline
#2
3.4.3 missing a closing parethesis
Good catch, thanks for reporting!
Obviously, since the book is published, this will have to go to errata.