A fun part about how I’m approaching the switch to micro.blog is that I’m working on it in 30 minute chunks here and there. Today I stumbled through how to work with Hugo templates to display categories:

{{ if .Params.categories }}
  {{ delimit .Params.categories ", " }}
{{ else }}
  Post
{{ end }}

The learning portion of this is that the Hugu/micro.blog templating language is completely unfamiliar to me. Is .Params.categories nil when empty, or is it sometimes an empty array? Can I treat it as nullable, or do I have to check array length? Can I just call delimit without any safety checks?

What I think I can rely on so far:

• .Params.catagories is nullable
• .Params.catagories is nil when empty, and if should be reliable
• delimit will not guard against nullable values