Range to build a variable

support
1

How do I write this :

srcset="{{ range uniq (slice $medium $small $very_small $smallest ) }} {{ .Permalink }} {{.Width}}w,{{end}}"

But trimming the last , ? I don’t see how to use range to build a variable, then trim it.
Thanks.

2

Perhaps delimit helps. Or chopping of the last comma with replaceRE.

3 
{{ $src := slice }}
{{ range uniq (slice $medium $small $very_small $smallest) }}
  {{ $src = $src | append (printf "%s %dw" .Permalink .Width) }}
{{ end }}
<img srcset="{{ delimit $src `, ` }}" />
4

Thanks.

5

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