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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
+![image-title](/path/to/your/image.jpg)
+```
+
+will become
+
+```md
+![image-title](/path/to/your/image.jpg)
+```
+
+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.