import { NavigatedData } from '@nativescript/core/ui/page' ; import { Page } from '@nativescript/core/ui/page' ; import { Observable } from '@nativescript/core/data/observable' ; export class HomeViewModel extends Observable { public stringValue = 'test' ; public stringNumericValue = '12345' ; public numericValue = 12345 ; constructor ( ) { super ( ) ; } } export function onNavigatingTo ( args ) { const page = < Page > args . object ; page . bindingContext = new HomeViewModel ( ) ; }