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The latest version of the book is P1.0, released 6 months ago. If you've bought a PDF of the book and would like to update it to this version (for free), visit your home page.

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  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: P1.0 (14-Jun-18)
#83262
PDF page: 26
The docstring for function 'greeting' says it returns 'Hello, username.' including full stop, so the body should really be `(str "Hello, " username "....more...
  • Reported in: P1.0 (16-May-18)
#83099
PDF page: 47
The function: (defn index-filter [pred coll] (when pred (for [[idx elt] (indexed coll) :when (pred elt)] idx))) Could just be: (de...more...
  • Reported in: P1.0 (16-May-18)
#83098
PDF page: 54
The results of the following two functions need to be swapped. (first {:fname "Aaron" :lname "Bedra}) -> ([:lname "Bedra"]) The result should be -...more...
  • Reported in: P1.0 (07-Aug-18)
#83473
PDF page: 97
Paper page: 83

Link to “Understanding Clojure’s PersistentVector Implementation” by Karl Krukow doesn't work.--Radek Kysely

  • Reported in: P1.0 (09-Mar-18)
#82887
PDF page: 132

The function big is missing the argument: x

(defn big? [ ] (> x 100))--Jonathan

  • Reported in: B3.0 (01-Feb-18)
#82729
PDF page: 172
On your code starting below “Now let’s put it all together.” To keep your code consistent with your previous, hard-coded make-reader and make-write...more...
  • Reported in: B3.0 (01-Feb-18)
#82728
PDF page: 182
In the def of jaws, the building of a sequence of notes in the text using the construct (Note. pitch 2 duration) fails with the error: "Error refresh...more...
  • Reported in: B4.0 (11-Feb-18)
#82764
PDF page: 215
These observations may be due to the way I am testing examples as they appear in the text. Maybe more explanation is required to introduce the concept...more...
  • Reported in: B4.0 (11-Feb-18)
#82765
PDF page: 215
On my previous submission for this page, about changing :balance to ::balance, I realize that the error is probably when you created test-savings and ...more...