From: Florian Gilcher <flo@...>
Date: 2008-03-01T00:51:53+09:00
Subject: Re: possible to optimize this?

  On Feb 29, 2008, at 4:45 PM, laredotornado wrote:

> Hi,
>
> I am creating a variable "counter" to count the number of iterations.
> But I get the funny feeling Ruby (I'm using 1.8) may already have some
> kind of implicit counter in the loop.  Does anyone know of a way the
> below can be optimized?
>
> <% counter = 0 %>
> <% @ec_orders.each do |ec_order| %>
>  <tr <%= classify(counter) %>>
>    <td><%=h ec_order.ship_first_name %></td>
>    <td><%=h ec_order.ship_last_name %></td>
>    <td><%=h ec_order.invoice_num %></td>
>    <td align="center"><%= link_to 'View', {:action => 'view', :id =>
> ec_order.id} %></td>
>  </tr>
>  <% counter += 1 %>
> <% end %>
>
> Thanks, - Dave
>

Use "each_with_index do |order, counter|" instead.

http://www.ruby-doc.org/core/classes/Enumerable.html#M003168

Greetings
Florian Gilcher