import { TextField , TextView } from '@nativescript/core' ; export function onLoaded ( args ) { const page = args . object ; const textField = < TextField > page . getViewById ( 'textField' ) ; const textView = < TextView > page . getViewById ( 'textView' ) ; attachToEvent ( textField , 'blur' ) ; attachToEvent ( textField , 'focus' ) ; attachToEvent ( textView , 'blur' ) ; attachToEvent ( textView , 'focus' ) ; } function attachToEvent ( control , event ) { control . on ( event , ( ) => { control . text = event + ' is thrown' ; } ) ; }