resources.ByType

The media type is typically one of image, text, audio, video, or application.

{{ range resources.ByType "image" }}
  <img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="">
{{ end }}

This function operates on global resources. A global resource is a file within the assets directory, or within any directory mounted to the assets directory.

For page resources, use the Resources.ByType method on a Page object.