Jekyll & Liquid: Output category list with post count?
I have written a code snippet that not only shows post count in each category, but also navigates to the posts of a specific category which got clicked. I hope you find it helpful:
<ul class="tag-box inline">
{% assign tags_list = site.categories %}
{% if tags_list.first[0] == null %}
{% for tag in tags_list %}
<li><a href="#{{ tag }}">{{ tag | capitalize }} <span>{{ site.tags[tag].size }}</span></a></li>
{% endfor %}
{% else %}
{% for tag in tags_list %}
<li><a href="#{{ tag[0] }}">{{ tag[0] | capitalize }} <span>{{ tag[1].size }}</span></a></li>
{% endfor %}
{% endif %}
{% assign tags_list = nil %}
</ul>
{% for tag in site.categories %}
<h2 id="{{ tag[0] }}">{{ tag[0] | capitalize }}</h2>
<ul class="post-list">
{% assign pages_list = tag[1] %}
{% for post in pages_list %}
{% if post.title != null %}
{% if group == null or group == post.group %}
<li><a href="{{ site.url }}{{ post.url }}">{{ post.title }}<span class="entry-date"><time datetime="{{ post.date | date_to_xmlschema }}" itemprop="datePublished">{{ post.date | date: "%B %d, %Y" }}</time></a></li>
{% endif %}
{% endif %}
{% endfor %}
{% assign pages_list = nil %}
{% assign group = nil %}
</ul>
{% endfor %}
An incremental improvement over Hossain's answer, which sorts the categories. Tested with Jekyll 3.3.1:
<h1 class='tag'>Blog Posts Sorted By Category</h1>
{% assign sorted_categories = site.categories | sort %}
{% for tag in sorted_categories %}
<h2 class='tag' id="{{ tag[0] }}">{{ tag[0] | capitalize }}</h2>
<ul class="post-list">
{% assign pages_list = tag[1] %}
{% for post in pages_list %}
{% if post.title != null %}
{% if group == null or group == post.group %}
<li><a href="{{ site.url }}{{ post.url }}">
<span class="entry-date"><time datetime="{{ post.date | date_to_xmlschema }}" itemprop="datePublished">{{ post.date | date: "%B %d, %Y" }}</time></span>
•
{{ post.title }}
</a></li>
{% endif %}
{% endif %}
{% endfor %}
{% assign pages_list = nil %}
{% assign group = nil %}
</ul>
{% endfor %}
Solution: {{ category | last }}
has all my posts, so {{ category | last | size }}
displays the count. I got help on the IRC. :)