I tried to create an addition to Enumerable called choose_randomly
that picks a random element from the Enumerable object. However when I
define it and execute the code rand complains about the wrong number
of arguments. Below is a capture of the ./script/console session.
[EMAIL PROTECTED] ~/Work/GreenGreen/Code/green_green_client_application
$ ./script/console
Loading development environment (Rails 2.1.2)
>> [1,2,3].choose_randomly
NoMethodError: undefined method `choose_randomly' for [1, 2, 3]:Array
from (irb):1
>> module Enumerable
>> def choose_randomly
>> array_of_self = Array( self )
>> index = rand( array_of_self.size )
>> array_of_self[ index ]
>> end
>> end
=> nil
>> [1,2,3].choose_randomly
ArgumentError: wrong number of arguments (1 for 0)
from (irb):5:in `rand'
from (irb):5:in `choose_randomly'
from (irb):9
>> [1,2,3][ rand( [1,2,3].size )]
=> 1
As you can see if I execute the code myself it seems to work. If I
copy that same code into irb it works perfectly.
Any ideas?
Farrel
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