{{ isset }} How to check variable is empty?

support
5

Post #4 is the one that worked for me, and it worked with .Params, whereas for some reason the above examples with isset did not work. I had a variable in the front matter called “section_number” and it was set to "" in some cases and e.g. “1.2” in others. Using the following code, it was showing “: Title” instead of just “Title” using isset. Once I switched it then stopped showing the colon.

  {{ if .Params.section_number }}
    <li><a class="section-jump" href="#{{.Params.weight}}">{{ .Params.section_number }}: {{ .Title }}</a></li>
  {{ else }}
    <li><a class="section-jump" href="#{{.Params.weight}}">{{ .Title }}</a></li>
{{ end }}