From: Phillip Gawlowski <pg@...>
Date: 2009-12-27T13:27:34+09:00
Subject: Re: How to truncate the spaces in the front of a line

On 27.12.2009 05:20, Milo Luo wrote:
> Thanks for great explainations.
> And one more question, how can you get this method so quickly? Is that
> your experience or  is tip there on it?

Both. ;)

For one, experience allows me to remember where, roughly, something is 
in the documentation, or if something that I want to do exists already. 
Then it is down to reading the documentation. ;)

Ruby is, for the most part, logically organized (once you now the lingo).

In your example, you have a String (appending .class to anything should 
reveal the object's class, [].class reveals that this is an Array), so 
you look at what methods the String class offers.

With a little experimentation in irb, you can see if what you found is 
useful. :)

A few pointers:

You can access Ruby's documentation online at ruby-doc.org.

Another help is the excellent Pickaxe book (Programming Ruby, 2nd 
Edition is the most relevant for 1.8.x; 3rd Edition for Ruby 1.9.x), 
which works as a Ruby tutorial (for experienced developers, anyway), and 
an excellent reference to the language.

--
Phillip Gawlowski