Errata
The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".
The following errata were submitted by our customers and approved as valid errors by the author or editor.
Color key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update
| Version | Location | Description | Submitted By | Date submitted | Date corrected |
|---|---|---|---|---|---|
| Printed | Page 3 first example |
printfn "Hello, World", shouldn't have a comma at the end Note from the Author or Editor: |
Anonymous | Oct 25, 2012 | |
Page 13 1st paragraph |
"the rest of this book will focuses" perhaps that should be "the rest of this book will focus" or "the rest of this book focuses" |
Ed Cavazos | Feb 23, 2013 | ||
Page 17 middle of page |
Misplaced a space in the following sentence between "main's" and "method's" "You can check the main ‘smethod's implementation by calling it from FSI" Note from the Author or Editor: |
Wout Konradt | Apr 16, 2012 | ||
Page 17 bottom of page |
"Whenever you add a new code, file it is added" unnecessary comma in the sentence Note from the Author or Editor: |
Wout Konradt | Apr 16, 2012 | ||
Page 26 4th paragraph |
"decimal" is split across two lines, but doesn't have a hypen to indicate line continuation |
Ed Cavazos | Feb 24, 2013 | ||
| Printed | Page 155 1st paragraph after the example code |
"The default accessibility for class fields (val and let bindings) is private." This is incorrect. val defaults to public. From http://msdn.microsoft.com/en-us/library/dd469494.aspx : "By default, explicit fields are public. This differs from let bindings in classes, which are always private." Note from the Author or Editor: |
William Sorensen | May 29, 2013 | |
Page 380 example code |
let probabilityOfPercipitation = parsedXmlDoc .data.[0] .parameters.[0] .probabilityofprecipitation.[0] .value.[0].Value;; These 3rd and below lines should be indented. Otherwise, I got the following error: error FS0010: Unexpected symbol '.' in binding. In addition, I failed to get probabilityOfPercipitation (I think this name is a typo: probabilityOfPrecipitation is correct) when I created SampleXmlDocWrapperLibrary.dll from a sample listed in P378-379. This might be because '/dwml/data/parameters/probability-of-precipitation' element contains only one 'value' element in the sample so the type of probabilityofprecipitation's value property is not an array but string. To fix the error, I simply added another 'value' element under 'probability-of-precipitation' and re-created the wrapper dll. Note from the Author or Editor: |
Yukitoshi Suzuki | Oct 15, 2012 | ||
Page 383 Example 15-3 |
let getCustomerByID id = query { for customer in db.Customers do where customer.CustomerID = id select c head } should be let getCustomerByID id = query { for customer in db.Customers do where (customer.CustomerID = id) // fix error: Arguments to query operators may require parentheses, e.g. 'where (x > y)' or 'groupBy (x.Length / 10)' select customer // fix error: The value or constructor 'c' is not defined head } Note from the Author or Editor: |
Yukitoshi Suzuki | Oct 17, 2012 |