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 |
---|---|---|---|---|
Page xxv 2nd Paragraph |
The paragraph does not appear to have been updated from the original version of the Ruby cookbook. It states that the recipes were tested with Ruby 1.8.4 and Rails 1.1.2, which seems a bit unlikely in 2015! |
rorym | Mar 29, 2015 | |
1 not sure |
In the "Representing Unprintable Characters" recipe, the word "mneumonic" appears. I think that should be "mnemonic." |
Matt Hacker | Apr 04, 2016 | |
1.11 Section 1.11 |
"The prime library has the set of all prime numbers" |
Anonymous | Feb 17, 2017 | |
Printed, | Page 28 3rd paragraph |
algorithms is misspelled as "alogorithms" |
O'Reilly Media |
Mar 29, 2016 |
Printed, | Page 28 4th paragraph |
Not sure if "with" should be in this sentence: This has meant that anything that breaks backward compatibility is being explored with in Ruby 3. |
O'Reilly Media |
Mar 29, 2016 |
PDF, ePub | Page 175 code in the Solution of 5.9. Sorting an Array by Frequency of Appearance |
phenomenon: |
Anonymous | Oct 11, 2014 |
Page 195 the first and second code examples in theh bottom half of page |
The tab/indentation formatting of the first code example appears to have not indented the first line: "empty = Hash.new" in line with the others. |
Ryan Grow | Dec 01, 2014 | |
Page 195 4th paragraph |
The text that reads: |
Ryan Grow | Dec 01, 2014 | |
Page 329 last paragraph |
There is one extra letter 't': "by calling Module#atttr_writer" should be "by calling Module#attr_writer" |
Anonymous | May 08, 2016 | |
Page 332 2nd paragraph and the code block below it |
I found at least the following mistakes: |
Anonymous | May 08, 2016 | |
Page 336 N/A |
This is more like a minor technical inaccuracy and suggestion than a mistake per se. |
Anonymous | May 08, 2016 | |
Page 773 Profiling output of running sequence_counter.rb, at top of page. |
The 7-column output display of the Ruby profiler is not what would actually result from running this Ruby script. The time column shows all zeros, for instance, when the text refers to different times. |
Mark Hern | Feb 06, 2017 | |
Printed, | Page 783 2nd paragraph |
"And if you're not sucked into an mess..." |
O'Reilly Media |
Mar 29, 2016 |