From: Gavin Sinclair <gsinclair@...>
Date: 2002-09-02T07:25:30+09:00
Subject: Re: Ruby aesthetic


----- Original Message -----
From: "Dossy" <dossy@panoptic.com>


> I can't tell who originally wrote this, but:
> > >>I'll conclude with one (new) feature from Python that makes me green with
> > >>envy: list comprehensions.  For those who don't know what that means,
> > >>here's an example:
> > >>
> > >>Ruby:  squares_less_than_10 = numbers.find_all{|i| i<10}.map{|i| i^2}
> > >>
> > >>Python: squares_less_than_10 = [x^2 for x in numbers if x < 10]
>
> What about this in Ruby, instead:
>
>     squares_less_than_10 = numbers.collect { |x| x**2 if x < 10 } - [nil]
>
> -- Dossy
>

That's nice.  Do you know you can use #compact as well?

Gavin