Rails - Aug 2009 - i want new Enumerable Methods, "includes, anies"

#includes
##before:
enum.each do |e|
  if e == "1"
    #bla~
    #bla~
  end
end

##after:
enum.includes("1"). do
  #bla~
  #bla~
end


#anies
##before:
enum.each do |e|
  if e.id == "1"
    #bla~
    #bla~
  end
end

##after:
enum.anies(id == "1"). do
  #bla~
  #bla~
end



my eng is very poor.
so i''m afraid wrong-understand

hiphapis wrote:
> #includes
> ##before:
> enum.each do |e|
>   if e == "1"
>     #bla~
>     #bla~
>   end
> end
> 
> ##after:
> enum.includes("1"). do
>   #bla~
>   #bla~
> end
Array#include? already exists with this exact functionality.  I forget 
if other Enumerables also have include?.
> 
> 
> #anies
> ##before:
> enum.each do |e|
>   if e.id == "1"
>     #bla~
>     #bla~
>   end
> end
> 
> ##after:
> enum.anies(id == "1"). do
>   #bla~
>   #bla~
> end
Use Enumerable#select.
> 
> 
> 
> my eng is very poor.
> so i''m afraid wrong-understand
Spend some more time with the Ruby core/stdlib docs.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org
-- 
Posted via http://www.ruby-forum.com/.

On Aug 5, 10:25 pm, hiphapis
<hipha...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> #includes
> ##before:
> enum.each do |e|
>   if e == "1"
>     #bla~
>     #bla~
>   end
> end
>
> ##after:
> enum.includes("1"). do
>   #bla~
>   #bla~
> end
>
You can also do this with:

enum.select { |e| e == "1" }.each do ...

so your ''includes'' function could be written as:

class Enumerable
  def includes(o, &block)
    select { |e| e == o }.each(&block)
  end
end
> #anies
> ##before:
> enum.each do |e|
>   if e.id == "1"
>     #bla~
>     #bla~
>   end
> end
>
> ##after:
> enum.anies(id == "1"). do
>   #bla~
>   #bla~
> end
>
I don''t think this will even parse - passing bare code fragments like
that doesn''t work in Ruby.

--Matt Jones