basically I have an object wanted to pass to the frontend. I logged it in the backend and it was not null, but in the frontend when I alerted it, it becomes null.
...
presentation := &presentationStruct {
Object: object,
}
log.Errorf("%v", object) // not null
template.Execute(writer, presentation)
...
// but it becomes null here
alert({{.Object}})
The object is a type of
map[string]map[string]struct {
[]float32
map[int][]struct {
string
float32
}
}
Is it because the type is too complicated?
No, it does not matter that the type is complicated. Template is not for passing struct from backend in Go to frontend in JavaScript. It is just do string replacement, replace strings in template with variables in Go and send final string.