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---
title: "Add lazy loading of images in Jekyll posts"
url: /add-lazy-loading-to-jekyll-posts.html
date: 2023-11-05T09:04:28+02:00
type: note
draft: false
---
Normally you define images with `![]()` in markdown files. But jekyll also
provides a way to adding custom attributes to tags with `{:attr="value"}`.
If you have lots of posts this command will append `` to all
images in all your markdown files.
```md
```
will become
```md
```
Shell line bellow. Go into the folder where your posts are (probably `_posts`).
```sh
find . -type f -name "*.md" -exec sed -i -E 's/(\!\[.*\]\((.*?)\))$/\1/' {} \;
```
Under the hood this adds `loading="lazy"` to HTML `img` nodes.
That is about it.
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