Ruby-无法使用nokogiri编写

Question

I am searching a <div> element by its classname and want to add it next to other <div> element. Following code is not writing data what I get using doc1.search .

require 'nokogiri'

doc1 =  Nokogiri::HTML(File.open("overview.html"))
affixButtons = doc1.search('div.margin-0-top-lg.margin-10-bottom-lg.text-center')
doc1.at('div.leftnav-btn').add_next_sibling(affixButtons)

Can someone suggest what I'm missing ?

Answer 1

Your code works just fine, if you would just like to write the edited data to file use File.open as follows:

require 'nokogiri'

doc1 =  Nokogiri::HTML(File.open("overview.html"))
affixButtons = doc1.search('div.margin-0-top-lg.margin-10-bottom-lg.text-center')
doc1.at('div.leftnav-btn').add_next_sibling(affixButtons)

File.open('output.html', 'w') {|f| f.write(doc1.to_html)}

Answer 2

您不会将生成的HTML保存到文件中，可以这样做：

File.open("result.html", "w"){|f| f.write(doc1.to_html)}