let autoComplete = "on" ; autoComplete = "off" ; autoComplete = "ON" ; type NumberBase = 2 | 8 | 10 | 16 ; let base ; base = 2 ; base = 3 ; let autoFocus = true ; autoFocus = false ; enum Protocols { HTTP , HTTPS , FTP } type HyperTextProtocol = Protocols . HTTP | Protocols . HTTPS ; let protocol ; protocol = Protocols . HTTP ; protocol = Protocols . HTTPS ; protocol = Protocols . FTP ;