returnObservable.empty(); }
let addInputValues = function( ...values: number[] ): number { let result = 0; for (let val of values) { result += val; } return result; }; addInputValues(); //OK - You can choose not to pass anything as well addInputValues(1, 1); //OK addInputValues(1, 2, 3); //O...
import{Injectable}from'@angular/core';import{Observable,delay,of,timeout}from'rxjs';@Injectable({providedIn:'root',})exportclassFakeImageUploadService{uploadImage(image:File):Observable<string>{console.log(`we are uploading fake upload${image.name}`);returnof('https://random.imagecdn.app/500/15...
Angular Material Table mat-cell cannot get long string to break or wrap word Angular: How to know my custom directive is fully loaded Angular: How to perform search on button click Angular:How to call one controller function from another controller AngularJS - How can i set rowspan value dyn...
Hello Guys, This is my third article here we are learning how to drag and drop table in Angular. Let' Start Step 1. Create component <ng g c componentname> Step 2. Install drage and drop from npm js npm i angular-drag-drop. Step 3. Add code in the your HTML file. <mat-table ...
We need a service to use in the guard; let's create the DomainService with an isAvailable method that returns an observable with a false value. This false value indicates that the domain is not available. import{Injectable}from'@angular/core';import{of, tap}from'rxjs';@Injectable({providedI...
Load the data in service: realtime.service.ts: import { Injectable }from'@angular/core'; import {AngularFire, FirebaseListObservable}from"angularfire2"; @Injectable() exportclassRealtimeService { constructor(privateaf: AngularFire) {constcourses$: FirebaseListObservable<any> = af.database.list(...
In this example, an Async Pipe is used with the*ngFordirective to resolve an observable to an array type. import {Component} from '@angular/core'; import {Observable, of} from 'rxjs'; @Component({ selector: 'async-observable-pipe', ...
const tree=arrayToTree(this.allLocations,{ id: 'pk_location_id', parentId: 'parent_location_id' }); this.items =tree;},errorCode => this.statusCode = errorCode); } In my Service file I have written like below getAllLocations(): Observable<Location[]> { return this.http.get(locat...
return this._datalistItems; } ngOnInit(): void { this.loadTodoList(); } loadTodoList() { this.todoService.fetch().then((res) => { this._datalistItems = new ObservableArray(res); }); } onDrawerButtonTap(): void { const sideDrawer = app.getRootView(); ...