import {Component, OnInit} from '@angular/core'; import {CountryService} from '../service/countryservice'; @Component({ templateUrl: './invalidstatedemo.component.html' }) export class InvalidStateDemoComponent implements OnInit { countries: any[]; cities: any[]; filteredCountries: any[]; value1: any; value2: any; value3: any; value4: any; value5: any; value6: any; value7: any; value8: any; value9: any; value10: any; constructor(private countryService: CountryService) { this.cities = [ {name: 'New York', code: 'NY'}, {name: 'Rome', code: 'RM'}, {name: 'London', code: 'LDN'}, {name: 'Istanbul', code: 'IST'}, {name: 'Paris', code: 'PRS'} ]; } ngOnInit() { this.countryService.getCountries().then(countries => { this.countries = countries; }); } searchCountry(event) { // in a real application, make a request to a remote url with the query and return filtered results, // for demo we filter at client side const filtered: any[] = []; const query = event.query; for (let i = 0; i < this.countries.length; i++) { const country = this.countries[i]; if (country.name.toLowerCase().indexOf(query.toLowerCase()) == 0) { filtered.push(country); } } this.filteredCountries = filtered; } }