Errata
The errata list is a list of errors and their corrections that were found after the product was released.
The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.
Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update
Version | Location | Description | Submitted by | Date submitted |
---|---|---|---|---|
Printed | Page Page 9 Top of page, under word 'Scala' |
The line |
Jack Widman (author) | Oct 13, 2022 |
Printed | Page Page 42 Paragraph 3 |
Should the sentence say: "Let us suppose we have two morphisms _f_ and _g_ where _f_: E(1) -> E(2) and _g_: E(2) -> E(3)." ? |
Andrew Harmel-Law | Oct 30, 2022 |
Page 6/7 last lines / first lines |
println(impureFunction(5)) |
Anonymous | Sep 09, 2023 | |
Printed | Page 9 first code example |
The two versions of "def myIf" written in Scala on pages 8 and 9 are exactly the same, but the text leads us to believe that the version on page 8 won't work and the one on page 9 will! But they are exactly the same! |
Mark Meyer | Oct 12, 2022 |
Printed | Page 17 Diagram |
I think the curly brace denoting the range of elements in the codomain should be smaller; encompassing the 2 and 3, but not the 1 and 4. |
Andrew Harmel-Law | Oct 23, 2022 |
Printed | Page 18 Paragraph 2 |
There is a typo in the last sentence of the paragraph. "The natural numberes..." |
Andrew Harmel-Law | Oct 23, 2022 |
Mobi | Page 20 2nd code example |
The second code example is the same as the first, but should be (assuming the Early Release version was correct): |
Craig Patchett | Jun 25, 2023 |
Printed | Page 36 bottom line |
You have F(f o g) = F(f) o F(g) $ |
Mark Meyer | Oct 29, 2022 |
Printed | Page 54 1st code example (Java with Vavr) |
The line with the "if" statement is missing. |
Andreas Zoufal | Oct 15, 2022 |
Printed | Page 54 2nd code example (Python) |
successfull -> successful? |
Andreas Zoufal | Oct 15, 2022 |
Printed | Page 55 Last paragraph ("This function tries to get a User object...") |
This paragraph is confusing, the reference code has two functions and uses a Student class with an email field? |
Andreas Zoufal | Oct 15, 2022 |
Printed | Page 57 1st paragraph |
"...that we have a of ids..." -> "...that we have a List of ids..."? |
Andreas Zoufal | Oct 15, 2022 |
Printed | Page 63 2nd code example |
is the copy of the previous code examples, including the .collect() part intentional? |
Andreas Zoufal | Oct 15, 2022 |