Question

I’m trying to learn on scrap these values which i put it in 2 different task:

1. get the 35.00 from the entire text
2. get the 42.00 from the entire text

below is the html:

<p style="font-size: 30px; margin-left: -10px; padding: 15px 0pt;">
$35.00 - $42.00
</p>

the code that im using to get the entire text is as below:

node = html_doc.at_css('p')  
p node.text

Answer 1

You can get the whole text from node.text and that’s as far as you need to go with Nokogiri. From there you could use scan to find the numbers and a bit of list wrangling (flatten and map) and you’re done. Something like this:

first, second = node.text.scan(/(\d+(?:\.\d+))/).flatten.map(&:to_f)

That should leave you with 35.0 in first and 42.0 in second. If you know that the numbers are prices with decimals then you can simplify the regex a bit:

first, second = node.text.scan(/(\d+\.\d+)/).flatten.map(&:to_f)