en function">extend</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
  <span class="token function">willRender</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token comment">// Set the "categories" property to a JavaScript object</span>
    <span class="token comment">// with the category name as the key and the value a list</span>
    <span class="token comment">// of produ