Get flash to fully experience Pearltrees
by Bill Walton 01/05/2007 Editor's note: this is the second part of Rolling with Ruby on Rails Revisited , an update to Curt Hibbs's influential Rolling with Ruby on Rails and Rolling with Ruby on Rails Part 2 . Also check out Bill Walton's monthly series, Cookin' With Ruby on Rails . NOTE TO READER: This tutorial is intended for use with Rails 1.2.6. It has not yet been updated to support Rails 2.x.
I’m glad people liked the introduction to Rails ; now you scallawags get to avoid my headaches with the model-view-controller (MVC) pattern. This isn’t quite an intro to MVC, it’s a list of gotchas as you plod through MVC the first few times. Here’s the big picture as I understand it:
Ruby is "an interpreted scripting language for quick and easy object-oriented programming" -- what does this mean? interpreted scripting language: ability to make operating system calls directly powerful string operations and regular expressions immediate feedback during development
str % arg → new_str click to toggle source Format—Uses str as a format specification, and returns the result of applying it to arg . If the format specification contains more than one substitution, then arg must be an Array or Hash containing the values to be substituted. See Kernel::sprintf for details of the format string.