>> Newbie here. The "?" operator is the same used in Swift?. any difference? This is the same as "accessor variant of the existential operator ?." in Coffescri

>> Newbie here. The "?" operator is the same used in Swift?. any difference? This is the same as "accessor variant of the existential operator ?." in Coffescript. I think that this was in the Coffeescript initially but in Dart this feature (operator) will come after four years of his life (2011-2015) as a great achievement of all time.