From: Timothy Hunter <TimHunter@...>
Date: 2007-03-17T06:01:58+09:00
Subject: Re: Issues using array.delete within a loop of the same array

james.d.masters@gmail.com wrote:
> This is a simplified example for what I'm trying to do but gets the
> point across:
>
> irb(main):001:0> a = [1,2,3,4,5]
> => [1, 2, 3, 4, 5]
> irb(main):002:0> a.each {|e| a.delete e}
> => [2, 4]
>
> I would expect the array to be emptied.  Insight please...
>
> Yes, I know that there are other ways to empty an array (i.e. a =
> []).  My code is more complex and I'm more interested in why this is
> happening and if there is a work-around for removing array items while
> iterating over the same array.  There will be other cases in this code
> where I will only want to remove some of the items.
>
> Thanks in advance...
>
>
>   
Use  #delete_if instead.