Sharing information across application boundaries using the platform provider scope

We can demonstrate how to share information outside of the app by creating a tweet button as an Angular element. This Angular element could be used outside of the app as well. Let's dig into the details on how to do that.

First, we will start by adding Angular elements to the app by running the following command:

ng add i @angular/elements

Then we include the Twitter widgets SDK within the page like this:

  <script
      src="https://platform.twitter.com/widgets.js"
      type="text/javascript"
    ></script

Then we can build a tweet hashtag button using a TweetCourse component like this:

<ng-container *ngIf="course$ | async as course">
  <a
    href="https://twitter.com/intent/tweet?button_hashtag= &...