In ruby, is there a way to know in the console what a method does?

Question

In Ruby, if i am looking for the methods of a class. ie:String.methods.sort and i have the following:

[:!, :!=, :!~, :<, :<=, :<=>, :==,         


        

Answer 1

You can use

help 'String#display'

and it'll show the rdoc for the method (the same output that would show from running ri 'String#display' outside of irb. You can also just type help into irb and it'll go into a mode where you can just keep typing method names and it'll show the rdoc (enter a blank line to exit).