Post without title in Jekyll - ruby

Question

In my Jekyll blog, I would like some posts not to have a title. How could I modify the Jekyll codebase to make it so that posts do not require a title?

Answer 1

You don't need to alter the jekyll codebase to remove titles. That can be done using different layouts with appropriate liquid filters and tags.
For individual post pages, simply make a new layout file (e.g. "_layouts/no-title-post.html") that doesn't have the {{ page.title }} liquid tag. In your _posts source file, set the YAML front matter to call it. For example:
---
layout: no-title-post
---
Note here that "title:" isn't required in the YAML front matter. If jekyll needs it, the value will be automatically crated from the filename. For example, "_posts/2012-04-29-a-new-post.md" would have its title variable set to "A New Post" automatically. If your templates don't call the title tags, it won't matter. You could include a "title:" in the front matter and it simply wouldn't be displayed.
You can also display the page without the title in your listing/index pages. Check the posts layout to determine if the title should be displayed. For example, to show titles on all your pages except ones that have the 'no-title-post' layout, you would do something like this:
{% for post in paginator.posts %}
{% if post.layout != 'no-title-post' %}
<h1>{{ post.title }}</h1>
{% endif %}
<div class="postContent">
{{ post.content }}
</div>
{% endfor %}
In that case, the link to the page itself is also removed. If the page needs to be addressable, you would have to add the link back in somewhere else.

Answer 2

edemundo's solution doesn't work anymore in all cases with Jekyll 3.
I use an empty title as default:
defaults:
-
scope:
type: "posts"
values:
layout: "post"
title: ""
Then you can compare titles against the empty string in your layouts, for example:
{% if post.title == "" %}
{{ post.content | strip_html | truncatewords:5 }}
{% else %}
{{ post.title }}
{% endif %}
If you like the automatic title generation you can use as frontmatter:
---
title: ""
---

Answer 3

I was having the same doubt, then I stumbled on this really simple solution:
{% if post.title %}
<h1>{{ post.title }}</h1>
{% endif %}
And then in the post file itself you would leave the title variable empty:
---
layout: post
title:
---
This way, the h1 will not print if the title is empty. I found this method particularly useful for post types like quotes, which most of the time doesn't have titles.