O'Reilly logo

Swift Programming: The Big Nerd Ranch Guide by John Gallagher, Matthew Mathias

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Gold Challenge

Create a new type, BookCollection, that conforms to TabularDataSource. Calling printTable(_:) on a book collection should show a table of books with columns for titles, authors, and average reviews on Amazon. (Unless all the books you use have very short titles and author names, you will need to have completed the previous challenge!)

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required