It appears to be frowned upon to pass a pointer to a slice to a function, but I have an example where I want to pass a slice to a goroutine and it sees the new values that other goroutines add over time (existing values don’t change - just appends). The best I have seen is to create a type mimic’ing the slice and use pointers to that - but it feels this may even be frowned upon. If the correct way to handle this to pass a channel into the goroutine that maintains the appending to a local copy of the slice or is there something simpler that I can utilize?
For example:
type Foo []int
func main() {
foo := Foo{1}
go func(foo *Foo) {
// do something using foo as its values grow slowly over time
fmt.Println(*foo)
}(&foo)
Thanks for any feedback / opportunity for me to learn 
Robert