mxlje/recursive.go

## recursive.go
type Thing struct {
	Text   string
	Things []Thing
}

func RootHandler(rw http.ResponseWriter, req *http.Request) {
	tmpl, err := template.New("root").Parse(`
		<html>
		{{ define "message" }}
			<li>{{ .Text }}
				{{ if gt (len .Things) 0}}
					<ul>
						{{ range .Things }}
						{{ template "message" . }}
						{{ end }}
					</ul>
				{{ end }}
			</li>
		{{ end }}

		<ul>{{ template "message" . }}</ul>
	`)

	data := Thing{
		Text: "Hello",
		Things: []Thing{
			{
				Text: "World",
			},
		},
	}
	err = tmpl.Execute(rw, data)
	if err != nil {
		rw.WriteHeader(http.StatusInternalServerError)
		fmt.Fprintln(rw, "Error:", err)
	}
}
	type Thing struct {
	Text string
	Things []Thing
	}

	func RootHandler(rw http.ResponseWriter, req *http.Request) {
	tmpl, err := template.New("root").Parse(`
	<html>
	{{ define "message" }}
	<li>{{ .Text }}
	{{ if gt (len .Things) 0}}
	<ul>
	{{ range .Things }}
	{{ template "message" . }}
	{{ end }}
	</ul>
	{{ end }}
	</li>
	{{ end }}

	<ul>{{ template "message" . }}</ul>
	`)

	data := Thing{
	Text: "Hello",
	Things: []Thing{
	{
	Text: "World",
	},
	},
	}
	err = tmpl.Execute(rw, data)
	if err != nil {
	rw.WriteHeader(http.StatusInternalServerError)
	fmt.Fprintln(rw, "Error:", err)
	}
	}