Update with update_attribute
Array.new(5, "A") fills an array with five a
Accepting CGI Variables
Is it empty
What's the next day?
Sharing Data between the Context and the Strategy
Use eval to run a statement dynamically
Match any of the given strings
merge method merges two hashes together, producing a copy of the hashes that removes duplicate keys by overwriting the key-value pairs from the merged array.
create a basic Ruby script called debugtest.rb
execute the yield statement any number of times
Writing a SOAP Client
how to add (+), subtract (-), multiply (*), and divide (/) fractions;
use puts to display text in a web page (It was printed out in the console.)
Get the min element in a range
Check the object_id before and after the assignment
Handling Passed Exceptions
Add to both sides
rescue the exception at the time the threads are joined.
manipulate time objects by adding and subtracting numbers of seconds to them.
The RadioButton Widget
Display your html document in a Internet Explorer
REXML is already part of Ruby, you get it free of charge.