Technically Feasible

Eleventy - Sorting

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Michael Oldroyd

I'm learning Eleventy. Coming from writing (mostly) strictly typed code, JS is really frustrating. It's possibly because I'm using VS Code instead of Intellij, but I don't know how method or type hinting could work. I'll try it out at some point.

I figured out a basic method to sort Eleventy collections;

// Sort with `Array.sort`
eleventyConfig.addCollection("sortedNav", function(collection) {
return collection.getFilteredByTag("nav").sort(function(a, b) {
return -;

I'm using this to sort the nav collection, which is the main navigation at the top of the page. You simply add a frontmatter item named priority;

title: Some Page
- nav
priority: 1

Finally, you need to switch whatever code is loading the nav collection to use the new sortedNav collection instead;

<ul class="nav page-header__nav">
{%- for nav in collections.sortedNav -%}
<li class="nav-item{% if nav.url == page.url %} nav-item-active{% endif %}"><a href="{{ nav.url | url }}">{{ }}</a></li>
{%- endfor -%}
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Michael Oldroyd

Michael is a Software Engineer working in the North West of England. Michael spends his days building hand-crafted PHP applications. Rumours of his super-hero status are currently unconfirmed. He savours his victories when solving difficult programming challenges; occasionally writing about them here, on his personal blog.