how to use fa-icon in angular

"apps": [
    {
      "root": "src",
      "outDir": "dist",
      ....
      "styles": [
          "styles.css",
          "../node_modules/bootstrap/dist/css/bootstrap.css",
          "../node_modules/font-awesome/css/font-awesome.css" // -here webpack will automatically build a link css element out of this!?
      ],
      ...
  }
  ]
],
import { library } from '@fortawesome/fontawesome-svg-core';
import { fas } from '@fortawesome/free-solid-svg-icons';
import { far } from '@fortawesome/free-regular-svg-icons';
library.add(fas, far);
import { BrowserModule } from '@angular/platform-browser';import { NgModule } from '@angular/core'; import { AppComponent } from './app.component';import { FontAwesomeModule } from '@fortawesome/angular-fontawesome'; @NgModule({  imports: [    BrowserModule,    FontAwesomeModule  ],  declarations: [AppComponent],  bootstrap: [AppComponent]})export class AppModule { }