title: Get specific WooCommerce product data on "added_to_cart" javascript event
body: <p>On WooCommerce, I would like to implement the following event tracking script when customer use the Ajax add to cart:</p>
  <pre><code>&lt;script&gt;
  bianoTrack('track', 'add_to_cart', {
  id: 'PRODUCT-1234',
  quantity: 10,
  unit_price: 123.45,
  currency: 'CZK',
  });
  &lt;/script&gt;
  </code></pre>
  <p>I know that I can use &quot;added_to_cart&quot; event this way:</p>
  <pre><code>jQuery( 'body' ).on( 'added_to_cart', function( e, fragments, cart_hash, this_button ) {
  ​
  });
  </code></pre>
  <p>But I have no idea how to get the product data like <strong>sku</strong>, <strong>quantity</strong>, <strong>price</strong>…</p>
  <p>How can I get specific WooCommerce product data on &quot;added_to_cart&quot; javascript event?</p>