I'm trying to implement loop as custom function. It takes number of iterations and content between curly brackets, then it should iterate content between brackets n times. Please, see example:
main.go
template.Must(template.ParseFiles("palette.html")).Funcs(template.FuncMap{
"loop": func(n int, content string) string {
var r string
for i := 0; i <= n; i++ {
r += content
}
return r
},
}).ExecuteTemplate(rw, index, nil)
index.html
{{define "index"}}
<div class="row -flex palette">
{{loop 16}}
<div class="col-2"></div>
{{end}}
</div>
{{end}}
Output
<div class="row -flex palette">
<div class="col-2"></div>
<div class="col-2"></div>
<div class="col-2"></div>
<div class="col-2"></div>
... 16 times
</div>
Is it possible to implement it? The motivation is that standard functionality of the text/template
doesn't allow just to iterate content between curly bracket. Yes we can do it by range
action going through "outside" data.