In Ruby 1.9.2 the Powers that Be introduced an explicit change so that the working directory is no longer in the Ruby path. I thought it was the Apocalypse and a terrible thing, until I learned about require_relative. My apps tend to look like this: require ‘some_gem’ require ‘another_gem’ require_relative ‘lib/init’ And then lib/init.rb can … Read more
While it is true that you cannot access local variables defined in required files, you can access constants, and you can access anything stored in an object that you have access to in both contexts. So, there are a few ways to share information, depending on your goals. The most common solution is probably to … Read more
Every expression in Ruby returns a value; in irb, the value returned by the expression you’ve just executed is displayed after =>. The return value of Enumerable::each is the object that called each – in this case, the array [1,2,3,4]