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[[!meta title="Simple Navigation Setup in Jekyll 3.9.0"]]
[[!meta date="2020-09-29"]]
I have found that there is a lot of information on the internet in regards to setting up "dynamic" navigation in Jekyll. The problem I've noticed is that a good amount of these implementations are overly complex. Here is the simplest way that I tend to use when building out `nav` elements in Jekyll (3.9.0 as of this writing).
## Creating the Directories & Files
In your Jekyll project, at the top level, you need to create a directory called `_data`. Inside this folder we will be creating a new file called `navigation.yml`. The contents of this file will contain all your navigation links and they are rendered like so:
- title: Home
url: /
- title: Articles
url: /articles/
- title: About
url: /about/
## Dynamically Rendering the Navigation
The next and final step is rendering out the navigation with a simple loop:
{% for item in site.data.navigation %}
<li>
<a href="{{ item.url }}"><span>{{ item.title }}</span></a>
</li>
{% endfor %}
## Highlight Current Page
It's also very easy to extend this method to add a CSS class based on whether a user is on the currently selected page or not:
{% for item in site.data.navigation %}
<li>
{% if item.url == page.url %}
<a class="active" href="{{ item.url }}"><span>{{ item.title }}</span></a>
{% else %}
<a href="{{ item.url }}"><span>{{ item.title }}</span></a>
{% endif %}
</li>
{% endfor %}
/* Custom styling for active class */
li a.active { color: red; }
Congrats! You now have fully functional, dynamic navigation on your Jekyll site.
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