title: Is there a way to filter through html_nodes with html_attributes?
body: <p>I started to use R and have a question, i'm trying to collect a list of prices of a html page. Here's an exemple of what i'm able to get when i ask R for prices</p>
  
  <pre><code>&lt;h3 class="item_price" itemprop="price" content="16450"&gt;                                        16 450&amp;nbsp;€
  &lt;/h3&gt;
  </code></pre>
  
  <p>I know that i have exactly 35 prices that follows <code>&lt;h3 class="item_price" itemprop="price" content="1234"&gt;</code><br>
  Is it possible to filter through h3 elements and attribute class="item_price" and then ask for content attribute value ?
  Thanks for the help.</p>