package main
import "golang.org/x/tour/reader"
type MyReader struct{}
// TODO: Add a Read([]byte) (int, error) method to MyReader.
func (m MyReader) Read(b []byte) (int, error){
for i := range b {
b[i] = 'A'
}
return len(b), nil
}
func main() {
reader.Validate(MyReader{})
}
//=========================
go: finding golang.org/x/tour latest
OK!