golang type assertion using reflect.Typeof()

by

If you need to switch on the type of the outer interface{} you wont need reflection.

switch x.(type){
  case int: 
    dosomething()
}

…but if you need to switch on the type of the attributes in an interface then you can do this:

s := reflect.ValueOf(x)
for i:=0; i<s.NumValues; i++{
  switch s.Field(i).Interface().(type){
    case int: 
      dosomething()
  }
}

I haven’t found a cleaner way, I’d love to know if it exists.

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