A tag for a field allows you to attach meta-information to the field which can be acquired using reflection. Usually it is used to provide transformation info on how a struct field is encoded to or decoded from another format (or stored/retrieved from a database), but you can use it to store whatever meta-info you … Read more
Go does not have optional parameters nor does it support method overloading: Method dispatch is simplified if it doesn’t need to do type matching as well. Experience with other languages told us that having a variety of methods with the same name but different signatures was occasionally useful but that it could also be confusing … Read more
From For statements with range clause: A “for” statement with a “range” clause iterates through all entries of an array, slice, string or map, or values received on a channel. For each entry it assigns iteration values to corresponding iteration variables and then executes the block. As an example: for index, element := range someSlice … Read more
Add dots after the second slice: //—————————vvv append([]int{1,2}, []int{3,4}…) This is just like any other variadic function. func foo(is …int) { for i := 0; i < len(is); i++ { fmt.Println(is[i]) } } func main() { foo([]int{9,8,7,6,5}…) }