Just as an additional precision, Prototype.K is *not* empty, it's the identity (Kernel) function: it basically returns its first argument, untouched. Not to be mistaken with Prototype.EmptyFunction :-)
Brandon Aaron a écrit : > Prototype.K is just an empty function. So if iterator is not defined > it will just use an empty function instead. The !!() forces the > returned value of the function to be a boolean. Indeed, the !! trick (double-logical-negation) forces any value to be converted to its boolean equivalent :-) -- Christophe Porteneuve a.k.a. TDD "[They] did not know it was impossible, so they did it." --Mark Twain Email: [EMAIL PROTECTED] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Spinoffs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-spinoffs -~----------~----~----~----~------~----~------~--~---
