Ruby Pocket Reference
by Michael Fitzgerald

The unconfirmed error reports are from readers.  They have not yet been 
approved or disproved by the author or editor and represent solely the
opinion of the reader.

Here's a key to the markup:
        [page-number]: serious technical mistake
        {page-number}: minor technical mistake
        <page-number>: important language/formatting problem
        (page-number): language change or minor formatting problem
        ?page-number?: reader question or request for clarification

This page was updated February 28, 2008.


UNCONFIRMED  errors and comments from readers: 


{31} example in "statement modifier for while";
The sum variable doesn't belong in the example.

Omit:

sum = 0

Replace:

cash += 1.00, sum while cash < 1_000_000

With:

cash += 1.00 while cash < 1_000_000


[109] Third line from bottom;
The method name should be each_pair, not each_key.


[110] First line;
The method name should be each_value, not each_key.