I need to add a hosted third-party JavaScript file in an Angular 2 component. This file is updated anytime a change is made in the associated third-party vendors proprietary system, so I cannot simply pull down a copy, include it locally, and import...
So I am trying to subscribe to a simple service that return data from a local JSON file. I have managed to get the service working, I can log it out in the function, but when I subscribe to the service in the angular 2 component, it is always undef...
in service section of angular.io tutorial for angular2 I hit a method named of.for example : getHeroes(): Observable<Hero[]> { return of(HEROES); } or in below sample: getHero(id: number): Observable<Hero> { // Todo: send the mess...
I'm new to both Angular2 and Rxjs and I am a little confused about a particular case. I have a simple service: import { Injectable } from '@angular/core'; import { Observable, Subject } from 'rxjs/Rx'; import { Http, Response }...
I am very new in Angular 2 and I have the following question about services. Into the main view (the one related to the app.component.ts class) I have this situation: <div class="container"> <div class="row"> <d...
I have a service in sub-module that wraps some third-party module, instantiates and initializes its service to prepare for use within app. @Injectable() class SubmoduleInitializerService { constructor (thirdPartyService: ThirdPartyService) {...
I want to Pass parameters to POST method in angular 2 but it is not working whwn I used params:new httpParams().set() but it is not worked .I also tried params:new httpParams().set() and headers then also it is not worked & finally I got the solu...
TypeScript File export class CompanyComponent { apiService : APIService; data : any; private companyUrl = 'http://localhost:4000/api/company/'; constructor(apiService : APIService) { this.apiService = apiService; this.getCo...
I have class Layer: import {AfterViewInit, ViewChild} from 'angular2/core'; export class Layer implements AfterViewInit { @ViewChild('element') element; public canvas: HTMLCanvasElement = null; public context: CanvasRenderin...
I was using EventEmitter and @Output in Angular services, today one of the coleagues mentioned it's not a good practice. I found this post mentioning it's a bad practice and it seems mostly is personal opinion, and this answer is mentioning...
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