Angular Material v6 Mat-Footer – “Cannot read property ‘template’ of undefined”
FIXED: This was not made clear in the material documentation, but all columns must contain a <mat-footer-cell/> element, even if only one column will contain content.
angular
Typescript – Code fails to build from error TS1128: Declaration or Statement expected, but runs as expected when I serve the code
In my case was just necessary to compile again the project
Angular ERROR TypeError: Cannot read properties of undefined (reading ‘onDestroy’)
I had the same issue. Try to remove the .angular directory! worked for me.
Angular 2 observable subscription not triggering
The same service instance isn’t being shared across your App and Home components because you have listed SidenavService as a provider for both. When you define service provider in the providers entry of a Component decorator, that service is then available to that component and all of its children as a singleton, meaning the same … Read more
How to use jsPDF with angular 2
I have done it, after doing lot of R&D , their are few steps to follow as below : Install : npm install jspdf –save typings install dt~jspdf –global –save npm install @types/jspdf –save Add following in angular-cli.json: “scripts”: [ “../node_modules/jspdf/dist/jspdf.min.js” ] html: <button (click)=”download()”>download </button> component ts: import { Component, OnInit, Inject } from … Read more
Async pipe does not fill object data into template
Objects are a bit tricky with the async pipe. With an Observable that contains an array, we can use NgFor and create a local template variable (hero below) that gets assigned each item of the array after the async pipe extracts the array from the Observable. We can then use that variable elsewhere in the … Read more
Property ‘subscribe’ does not exist on type ‘() => Observable’
You are not calling the getVideos method. You are calling subscribe on the function reference of getVideos and not the returned value. Call subscribe after you call getVideos(): ngOnInit() { this.videoserv.getvideos().subscribe((response) => { this.videos = response }); }
What is observable, observer and subscribe in angular?
Here is a simple visual to see the difference: As seen above … an Observable is a stream of events or data. They are often returned from Angular methods, such as the http.get and the myinputBox.valueChanges. Subscribing “kicks off” the observable stream. Without a subscribe (or an async pipe) the stream won’t start emitting values. … Read more
how to use underscore.js library in angular 2
For a project based on https://cli.angular.io, I needed to do the following: 1) Import libraries npm install underscore –save npm install @types/underscore –save 2) in tsconfig.app.json, add underscore to array ‘types’: “types”: [ “underscore” ] 3) In any component file I need to use underscore, I add this import * as _ from ‘underscore’; 4) … Read more