categories.md

layout	default
title	Categories
permalink	/categories/

{% comment %}Collect all unique categories from posts{% endcomment %} {% assign all_categories = "" %}

{% for post in site.posts %} {% if post.categories %} {% assign raw_categories = post.categories | join: " " %} {% assign clean_categories = raw_categories | replace: "[", "" | replace: "]", "" | replace: '"', "" %} {% assign category_array = clean_categories | split: " " %} {% for category in category_array %} {% assign all_categories = all_categories | append: category | append: "," %} {% endfor %} {% endif %} {% endfor %}

{% assign unique_categories = all_categories | split: "," | uniq | sort %}

{% for category in unique_categories %} {% if category != "" %}

{{ category }}

{% for post in site.posts %} {% if post.categories %} {% assign raw_categories = post.categories | join: " " %} {% assign clean_categories = raw_categories | replace: "[", "" | replace: "]", "" | replace: '"', "" %} {% assign category_array = clean_categories | split: " " %} {% if category_array contains category %}
• {{ post.title }} ({{ post.date | date: "%Y-%m-%d" }})
{% endif %} {% endif %} {% endfor %}

{% endif %} {% endfor %}