Shortcode param doesn't work with 'false' boolean param

support
1

Accessing a frontmatter parameter with Shortcode param fails when the parameter is boolean and has value false.

---
title: param test
bool1: true
---

{{< param bool1 >}}

gives true.

---
title: param test
bool1: false
---

{{< param bool1 >}}

rises error Param "bool1" not found: "/content/test/p.md:6:1" logged 1 error(s)

2

Because when it is false it’s like it’s not there.
If you want to return false than you need to convert that into a string.

3

This is the only situation where I have found the isset function to be useful.

You can override the internal “param” shortcode.

mkdir -p layouts/shortcodes
touch layouts/shortcodes/param.html

Then place this in the new file:

{{- $value := "" }}
{{- with $name := .Get 0 }}
  {{- if $.Params }}
    {{- if isset $.Page.Params $name }}
      {{- if in (slice true "true") ($.Page.Param $name) }}
        {{- $value = true }}
      {{- else if in (slice false "false") ($.Page.Param $name) }}
        {{- $value = false }}
      {{- else }}
        {{- $value = $.Page.Param $name }}
      {{- end }}
    {{- end }}
  {{- end }}
{{- else }}
  {{- errorf "The %s shortcode did not find %q in front matter. See %s" $.Name $name $.Position }}
{{- end }}
{{- $value -}}

This will return false if the param is false or "false", and will return true if the param is true or "true".

4

For my simple use case, the following might sufficient.

--- 
title: param test
bool1: false
bool2: true
str1: "str1"
str2: "false"
number1: 1
number2: 3.14
---

{{< param2.inline  "bool1" >}}{{ $.Page.Param (.Get 0) }}{{< /param2.inline >}}
{{< param2.inline  "bool2" />}}
{{< param2.inline  "str1" />}}
{{< param2.inline  "str2" />}}
{{< param2.inline  "number1" />}}
{{< param2.inline  "number2" />}}