Rails - Jul 2009 - remote function: poor performance when erasing a div with lots of elements

Hi,

I have a controller action that just has to replace a div with
nothing:

# Controller -
  def contract
    render :text => ""
  end
# -------

I would think that this action would operate at the same speed
regardless of what was in the div. I find, however, when there is a
lot of text/material in the div the action takes longer to complete.

Is there a ''proper'' way to do this that is more efficient?

I''m running Ruby version 1.9.1, Rails version 2.3.2 on a i386-
darwin9.6.0 platform (mac os X)

best
-Kaushik

Hi,

A search suggests that this may be a browser bottleneck, rather than a
rails bottleneck. Rails finishes the task in 1ms, and there is a lag
until the browser (Firefox) updates the div. And according to this
link http://stackoverflow.com/questions/609698/why-is-innerhtml-slow-in-firefox,
this may be a browser issue.

Best
-Kaushik

On Jul 28, 11:37 am, kghose
<kaushik.gh...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi,
>
> I have a controller action that just has to replace a div with
> nothing:
>
> # Controller -
>   def contract
>     render :text => ""
>   end
> # -------
>
> I would think that this action would operate at the same speed
> regardless of what was in the div. I find, however, when there is a
> lot of text/material in the div the action takes longer to complete.
>
> Is there a ''proper'' way to do this that is more
efficient?
>
> I''m running Ruby version 1.9.1, Rails version 2.3.2 on a i386-
> darwin9.6.0 platform (mac os X)
>
> best
> -Kaushik