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

Answer 1

Here's an answer that uses sorting (useful!):

{% comment %}
#
#  Change date order by adding '| reversed'
#  To sort by title or other variables use {% assign sorted_posts = category[1] | sort: 'title' %}
#
{% endcomment %}
{% assign sorted_cats = site.categories | sort %}
{% for category in sorted_cats %}
{% assign sorted_posts = category[1] | reversed %}
{{category[0] | capitalize}}

  {% for post in sorted_posts %}
    
{{  post.title }}
  {% endfor %}

{% endfor %}

This is not mine, it's taken from here.