Add comments to generic functions

atom.go

@@ -16,6 +16,7 @@ type Countable interface {
 	*xml.Attr | *Person | *Category | *Link | *ExtensionElement | *Entry
 }
 
+// addToSlice adds a Countable to to a *[]Countable
 func addToSlice[C Countable](slice *[]C, countable C) {
 	if *slice == nil {
 		*slice = make([]C, 0)
@@ -23,6 +24,8 @@ func addToSlice[C Countable](slice *[]C, countable C) {
 	*slice = append(*slice, countable)
 }
 
+// deleteFromSlice deletes the Countable with the index from the *[]Countable.
+// It return an error.
 func deleteFromSlice[C Countable](slice *[]C, id int) error {
 	length := len(*slice)
 	if id > length {