On 10 Dec 2008, at 21:33, SurviveStyle5 wrote:
>
> I'm having a weird issue where if say....
>
> someobject.items.sort_by {|item| item.key }
> #or
> someobject.items.sort_by &:key
> #then
> someobject.items.each do |item|
> #somestuff
> end
>
> #somestuff is not in sorted order. if i use different syntax...
>
> questionnaire.items.sort! { |a,b| a.key <=> b.key }
> this works fine. why is that? does it matter?
>
sort_by does not change the array (it returns a new, sorted, array),
as does sort.
sort! on the other hand changes the array you call it on (as the !
indicates)
Fred
> rails --version
> Rails 2.1.1
>
> ruby --version
> ruby 1.8.6 (2008-03-03 patchlevel 114) [universal-darwin9.0]
>
>
> thoughts?
>
> >
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