I believe functions are meant to be used as part of a pipeline, so having 1 value (+ error) makes it so the pipeline only stops execution on an error. I personally have not found a use for void functions, and it makes it easier to visualize the template execution model. On Friday, April 9, 2021 at 2:05:33 PM UTC-4 Johnny Jacobs wrote:
> Hello all, > > Is there any reason you can't use a custom function with no return value > in Go templates? > > You get a "Can't call method/function with 0 results." if you try to call > such a function. FuncMap <https://golang.org/pkg/text/template/#FuncMap> > requires > functions to either return a value, or a value plus an error. > > Is there any reason, technical or otherwise, for these restrictions? > Variables assignment and many Action clauses don't give back values, so it > doesn't seem like it breaks convention. > > I might file an issue for this if nothing meaningful is brought up here. > > Best, > Johnny > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/41190a31-3151-4a5a-b9b8-631198dca58fn%40googlegroups.com.
