we've got a four line option or a five line option:

```
def analytics_visitor_id
  /id=([\w\-]*)/.match(cookies['WT_FPC']).tap do |match|
    @analytics_visitor_id = match.captures.first if match
  end
  @analytics_visitor_id.to_s
end
```

or

```
def analytics_visitor_id
  visitor_id = ''
  /id=([\w\-]*)/.match(cookies['WT_FPC']).tap do |match|
     visitor_id = match.captures.first if match
  end
  visitor_id
end
```

what do you think looks better?