max_by with block
Add private method to Object and call it in instance class
The intersection is the set of values that appear in both
Save and retrieve data with pstore
using the upto method, add the same amount of days back, showing the dates as you progress along
Classes as Singletons
Call GC to do a garbage collection
writable with writable?
Loop hash with interpolation
require the file containing the module, and then it would work (again, require is expecting a name in the load path).
Return a binding
Convert string to hex
Read Data from a Text Field
With nested for loops, you can easily print out times tables from 1 to 12
class_eval is ideal for adding methods to a class dynamically
Using unless as Modifiers with boolean operator
Add two method to string class to capitalize first letter
Synchronizing Access to an Object
Format Time as httpdate
Add button and label
Writing Unit Tests
Open file dialog
Find the second green element.