I have the following controller code:

```
class NodesController < ApplicationController

  def index
    @nodes = Node.com_name_scope("27").find(:all, :conditions => ['COMPONENT_NAME LIKE ?', "#{params[:search]}%"])

    respond_to do |format|
      format.js {render :js => @nodes.map { |node|  "<li>#{node.COMPONENT_NAME}</li>"}}
    end
end

```

When I do:

```
http://localhost/myproject/nodes.js

```

I get the following list:

```
<li>Value A</li>
<li>Value B</li>
<li>Value C</li>
<li>Value D</li>

```

I would like to insert a `<ul>` tag at the start and end of the list so that it look as follows:

```
<ul>
<li>Value A</li>
<li>Value B</li>
<li>Value C</li>
<li>Value D</li>
</ul>

```

But when I do:

```
format.js {render :js => "ul" + @nodes.map { |node|  "<li>#{node.COMPONENT_NAME}</li>"}+ "</ul>" }

```

It is giving me the following error message:

```
 TypeError in NodesController#index

can't convert Array into String

```

My question is how do I include the `<ul>` tag in front and at the end of the list.

Thanks a lot for your help