Nokogiri strip all attributes

Question

I have this html markup:

<div class="item"><a href="www"></a></div>

and I'd like to get this:

<div><a></a></div>

How can I do it with Nokogiri?

Answer 1

require 'nokogiri'
doc = Nokogiri::HTML('<div class="item"><a href="www"></a></div>')

1. You could remove all attributes by xpath:

   doc.xpath('//@*').remove
   

2. Or, if you ever need to do something more complex, sometimes it's easier to traverse all elements with:

   doc.traverse do |node| 
     node.keys.each do |attribute|
       node.delete attribute
     end
   end
   

Answer 2

That works for all but xml namespace attributes (xmlns=). you can easily strip those off too via doc.remove_namespaces! (include the exclamation point, otherwise it won't really remove them)