From: Sun <as@...>
Date: 2008-01-21T19:09:57+09:00
Subject: what does 'def [](var1)' means and how to use?

I came cross a ruby class with function defined as:

class A
...other functions...
 def [](var1)
     ...
     ....
  end
end

I do not know what this function is for and how to use it. any tips?