file/info.go
func IsDir(name string) (bool, error) {
	i, err := NewInfo(name)
	if err != nil {
		return false, err
	}
	return i.IsDir(), nil
}
func IsDir(name string) (bool, error) {
	i, err := NewInfo(name)
	if err != nil {
		return false, err
	}
	return i.IsDir(), nil
}
func IsDir ( name string ) ( bool , error ) { i , err := NewInfo ( name ) if err != nil { return false , err } return i . IsDir ( ) , nil }
// * * *
// IsDir reports whether if the named file is a directory.
* * * IsDir reports whether if the named file is a directory .