Capture or assign golang template output to variable
Within a template, how can I achieve this?
{{$var := template \"my-template\"}}
I just get \"unexpected in operand\"
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There is no "builtin" action for getting the result of a template execution, but you may do it by registering a function which does that.
You can register functions with the Template.Funcs() function, you may execute a named template with Template.ExecuteTemplate() and you may use a bytes.Buffer as the target (direct template execution result into a buffer).
Here is a complete example:
var t *template.Template func execTempl(name string) (string, error) { buf := &bytes.Buffer{} err := t.ExecuteTemplate(buf, name, nil) return buf.String(), err } func main() { t = template.Must(template.New("").Funcs(template.FuncMap{ "execTempl": execTempl, }).Parse(tmpl)) if err := t.Execute(os.Stdout, nil); err != nil { panic(err) } } const tmpl = `{{define "my-template"}}my-template content{{end}} See result: {{$var := execTempl "my-template"}} {{$var}} `Output (try it on the Go Playground):
See result: my-template contentThe
"my-template"template is executed by the registered functionexecTempl(), and the result is returned as astring, which is stored in the$vartemplate variable, which then is simply added to the output, but you may use it to pass to other functions if you want to.讨论(0)
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