From: Joel VanderWerf <vjoel@...>
Date: 2004-06-13T05:05:59+09:00
Subject: Re: Appropriate use of camelCase

Ryan Paul wrote:
> Part of what makes ruby powerful is the fact that it doesnt sacrifice
> power and brevity to increase readability. Ruby is downright unintuitive
> in some places, with extremely rewarding consequences.
> 
> For instance, compare ruby blocks to python list comprehensions:
> 
> lst.reject {|x| not x.upcase.include? n.upcase }
> 
> vs.
> 
> [x for x in lst if n.upper in x.upper]

Unintuitive? It might help to avoid the double negative...

lst = %w{ foo BaR baZ foobar }
n = "bar"

# original
p lst.reject {|x| not x.upcase.include? n.upcase }

# no double negative
p lst.select {|x| x.upcase.include? n.upcase }

# even better :)
p lst.grep(/#{n}/i)

To know ruby is to love it.