refractor(): use es6 features
refractor(): use es6 features

tor-es6'

xueron/ionic-native,ramonornela/ionic-native,ramonornela/ionic-native,klirix/ionic-native,driftyco/ionic-native,driftyco/ionic-native,xueron/ionic-native,ramonornela/ionic-native,xueron/ionic-native,ramonornela/ionic-native,driftyco/ionic-native,klirix/ionic-native,xueron/ionic-native,klirix/ionic-native