From: "David A. Black" <dblack@...>
Date: 2010-09-12T08:51:23+09:00
Subject: Re: .each skipping elements

Hi --

On Sun, 12 Sep 2010, Cameron Vessey wrote:

> Thanks for the reply and I think I get it now
>
> if we delete element 50
> element 51 gets sloted into 50
> then the pointer moves to 51 never addressing the original 51..ok
>
> page.links.delete_if{|link| link =~ /(Blog|About
> Us|Status|Help|TOS|Privacy|Are we missing an area?)/

(Note that the ? in that regex is a special character and will not match
an actual question mark. It's a zero-or-one quantifier, operating on the
"a" character before it.)

>   }
>
> I tried it .. it runs... no errors... It loops threw all the link
> elements.. but never does any thing.. nothing gets deleted
>
>
> I see how it should work ...but it doesn't

Do you need to make it case insensitive? It definitely works:

$ cat del.rb 
array = ["Keep1", "Blog", "Status", "Keep2", "TOS", "Help", "Keep3"]
array.delete_if {|word| word =~ /Blog|Status|TOS|Help/ }
p array

$ ruby del.rb 
["Keep1", "Keep2", "Keep3"]

so something else must be going on.


David

-- 
David A. Black, Senior Developer, Cyrus Innovation Inc.

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