liquid - Jekyll display posts by category

Question

scratching my head over this - help much appreciated.

I want to display a list of all my Jekyll posts, organised by category. I know Line 3 isn't correct but I can't figure out what it should be. Any ideas? Thanks!

{% for category in site.categories %}
    <h3>{{ category | first }}</h3>
    {% for post in page.categories.category %}
      {{ post.title }}<br>
    {% endfor %}            
{% endfor %}

Answer 1

Got it! Needed an intermediate posts loop before listing out individual posts

<ul>
{% for category in site.categories %}
  <li><a name="{{ category | first }}">{{ category | first }}</a>
    <ul>
    {% for post in category.last %}
      <li><a href="{{ post.url }}">{{ post.title }}</a></li>
    {% endfor %}
    </ul>
  </li>
{% endfor %}
</ul>