From: Martin DeMello <martindemello@...>
Date: 2010-09-08T21:06:18+09:00
Subject: Re: Small improvements ideas ?

On Wed, Sep 8, 2010 at 5:08 PM, Chris <christophe.gimenez@gmail.com> wrote:
> Hello, I would like to know how to shorten these two lines
>
> 1) doit() if my_string && my_string.downcase == 'hello'
> 2) doit() if one_var && (my_string =~ /this_regexp/) == nil
>
> Case 1) is a way to check for my_string beeing nil (would break on
> downcase call). But it's verbose, nothing better ??

1. check out the andand library [http://andand.rubyforge.org/]

doit() if my_string.andand.downcase == "hello"

> Case 2) I want doit beeing call if regexp don't match. would I use !
> (my_string =~ /this_regexp/) but I don't like using ! because it's not
> very readable and I can't use not keyword in this case

mystring !~ /this_regexp/

martin