Hugo: Dynamic Image Rendering with URL Replacement

Mon, 16 Oct 2023 07:40:00 +0300

If you want to use Hugo to dynamically render images with URL replacement and lazy loading, here is the code.

{{ $card__show_image := .Params.show_image }}
{{ $cardImageURL := "" }}
{{ if and (eq $card__show_image "true") (.Params.images) }}
 {{ with .Params.images }}
 {{ range $image := . | first 1 }}
 {{ $cardImageURL = replaceRE "(=w|s)(2400|1600)" "$1360" $image }}
 {{ end }}
 {{ end }}
 <img src="{{ $cardImageURL | absURL }}" alt="{{ .LinkTitle }}" decoding="async" loading="lazy">
{{ end }}

I’m using this code on my blog to render images with lazy loading and responsive image sizes on different part of my blog, like cards, cover images etc.

Performance on OKCKnet

Hugo: Dynamic Image Rendering with URL Replacement