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aruprakshit/document.rb

Created February 11, 2015 06:25
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difference between Nokogiri::HTML::DocumentFragment and Nokogiri::HTML::Document
Raw
document.rb
require 'nokogiri'
doc = Nokogiri::HTML::Document.parse <<-html
<table style="width:100%">
<tr>
<td>Jill</td>
<td>Smith</td>
<td>50</td>
</tr>
<tr>
<td>Eve</td>
<td>Jackson</td>
<td>94</td>
</tr>
</table>
html
puts doc.xpath("//table/tr").count # 2
Raw
document_fragment.rb
require 'nokogiri'
doc = Nokogiri::HTML::DocumentFragment.parse <<-html
<table style="width:100%">
<tr>
<td>Jill</td>
<td>Smith</td>
<td>50</td>
</tr>
<tr>
<td>Eve</td>
<td>Jackson</td>
<td>94</td>
</tr>
</table>
html
puts doc.xpath("//table/tr").count # 0
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Here is the difference

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