From: Joel VanderWerf <vjoel@...>
Date: 2003-03-25T10:11:22+09:00
Subject: Re: exiting a loop

Daniel Carrera wrote:
> On Mon, Mar 24, 2003 at 04:16:24PM +0900, ahoward wrote:
> 
> 
>>i end up doing something like this too, only i usually use :
>>
>>ruby -e 'puts SomeClass.new.methods.sort - Object.new.methods.sort' | less
>>
>>to weed out all but the unique ones.
> 
> 
> I didn't think of that.  I just wrote this one-line script:
> ----------
> #!/bin/sh
> # File name: methods
> 
> ruby -e 'puts '$1'.new.methods.sort - Object.new.methods.sort' | less
> ----------
> 
> So I can just type "methods String" on a terminal.
> 

Nice. More focused than 'ri String'.

It might be better to use Module#instance_methods. It takes a boolean 
arg that determines if superclasses are included, but you might still 
want to do the subtraction. What this would save you is actually 
instantiating an object, which might fail for lack of arguments, and 
anyway who knows what instantiating the class does (fork a web server 
maybe?).