template package conditional comma

[Greg Worley]

I'm wondering how to write a template that will add a comma at the end of each line unless it's the last line.

for example:

line 1,

line 2,

line 3

[Greg Worley]

hmm, and :

package main

import (

"template"

"os"

"fmt"

)

const templStr = `{{range $i, $e := $}}{{if $i}},{{end}}{{$e}}{{end}}`

func main() {

fmt.Println("start")

 t := template.Must(template.New("example").Parse(templStr))

 t.Execute(os.Stdout, []string{"line 1", "line 2", "line 3"})

  }

outputs:

start

line 1,line 2,line 3

[gregworley]

thanks!

On Oct 28, 7:36 pm, D Smithson <d_smith...@rocketmail.com> wrote:
> Here's the template that produces the output specified in the original mail
> (one string per line with comma at end of each line except last)
>
> var templStr = `{{range $i, $e := $}}{{if $i}},
> {{end}}{{$e}}{{end}}
> `