[ruby-tut] Errata / Comments

[Davis, James (NIH/CIT)]

The Basics / New names for old things

    Typo:
    - Method ... Think of it as the object's "hehaviour".
    + Method ... Think of it as the object's "behaviour".
      or
    + Method ... Think of it as the object's "behavior".  (US Spelling)


The Basics / Writing good programs / Use constants

    Suggestion: Might want to mention that some programmers use all
    uppercase letters in constant names, e.g., MAX_WEIGHT = 100.
    

The Basics / Writing good programs / Use interactive resources?
    
    Suggestion: Move the 'Use constants' section above 'Use irb',
    and add sections for 'Use interactive resources' (as you
    mentioned on the ML the other day):
        ruby -e 'puts SomeClass.instance_methods.sort' | more
        ri SomeClass.some_method
        pickaxe
    as ways to learn about what you can do with a class.
    Note: Windows does not have a less command, but does have more.
    Just a suggestion.  Maybe it's too early to introduce the reader
    to ri and ruby -e.


More later,


- Jim -