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Muhammad Ahmad
Muhammad Ahmad

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How to count html tags in a web page by using web url

#ruby #webdev #showdev #rails

  • Create new rails app

  • Install following Gems

gem 'nokogiri' gem 'open-uri'
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  • Script 
begin @doc = Nokogiri::HTML(URI.open(params[:page][:url]).read) @summary = @doc.xpath("//*").map(&:name).each_with_object({}) {|n, r| r[n] = (r[n] || 0) + 1 } rescue Exception => e puts "Couldn't read \"#{ params[:page][:url] }\": #{ e }" end
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  • View 
<% @summary.each do |tag, count| %> <div> <%= tag %>: <%= count %> </div> <% end %>
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Github Repo: rails-UrltoHtml
Demo Link: rails-UrltoHtml

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