{{ if .Site.Params.highlightjs }}
{{ if or (not (isset .Params "highlight")) (.Params.highlight) }}
{{ $hl := newScratch }}
{{ $hl.Set "languages" (union (.Site.Params.highlightjslanguages) (.Params.highlightjslanguages)) }}
{{ with $hl.Get "languages" }}
{{ range . }}
{{ end }}
{{ end }}
{{ $hl.Delete "languages" }}
{{ end }}
{{ end }}