"styles": [
  "styles.scss",
  "node_modules/ngx-toastr/toastr.css" // try adding '../' if you're using angular cli before 6
]

import { CommonModule } from '@angular/common';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

import { ToastrModule } from 'ngx-toastr';

@NgModule({
  imports: [
    CommonModule,
    BrowserAnimationsModule, // required animations module
    ToastrModule.forRoot(), // ToastrModule added
  ],
  bootstrap: [App],
  declarations: [App],
})
class MainModule {}

import { AppComponent } from './src/app.component';
import { provideAnimations } from '@angular/platform-browser/animations';

import { provideToastr } from 'ngx-toastr';

bootstrapApplication(AppComponent, {
  providers: [
    provideAnimations(), // required animations providers
    provideToastr(), // Toastr providers
  ]
});

import { ToastrService } from 'ngx-toastr';

@Component({...})
export class YourComponent {
  constructor(private toastr: ToastrService) {}

  showSuccess() {
    this.toastr.success('Hello world!', 'Toastr fun!');
  }
}

this.toastrService.error('everything is broken', 'Major Error', {
  timeOut: 3000,
});

iconClasses = {
  error: 'toast-error',
  info: 'toast-info',
  success: 'toast-success',
  warning: 'toast-warning',
};

// root app NgModule
imports: [
  ToastrModule.forRoot({
    timeOut: 10000,
    positionClass: 'toast-bottom-right',
    preventDuplicates: true,
  }),
],

import { AppComponent } from './src/app.component';
import { provideAnimations } from '@angular/platform-browser/animations';

import { provideToastr } from 'ngx-toastr';

bootstrapApplication(AppComponent, {
  providers: [
    provideToastr({
      timeOut: 10000,
      positionClass: 'toast-bottom-right',
      preventDuplicates: true,
    }), 
  ]
});

export interface ActiveToast {
  /** Your Toast ID. Use this to close it individually */
  toastId: number;
  /** the title of your toast. Stored to prevent duplicates if includeTitleDuplicates set */
  title: string;
  /** the message of your toast. Stored to prevent duplicates */
  message: string;
  /** a reference to the component see portal.ts */
  portal: ComponentRef<any>;
  /** a reference to your toast */
  toastRef: ToastRef<any>;
  /** triggered when toast is active */
  onShown: Observable<any>;
  /** triggered when toast is destroyed */
  onHidden: Observable<any>;
  /** triggered on toast click */
  onTap: Observable<any>;
  /** available for your use in custom toast */
  onAction: Observable<any>;
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

import { ToastrModule, ToastContainerModule } from 'ngx-toastr';

import { AppComponent } from './app.component';

@NgModule({
  declarations: [AppComponent],
  imports: [
    BrowserModule,
    BrowserAnimationsModule,

    ToastrModule.forRoot({ positionClass: 'inline' }),
    ToastContainerModule,
  ],
  providers: [],
  bootstrap: [AppComponent],
})
export class AppModule {}

import { Component, OnInit, ViewChild } from '@angular/core';

import { ToastContainerDirective, ToastrService } from 'ngx-toastr';

@Component({
  selector: 'app-root',
  template: `
    <h1><a (click)="onClick()">Click</a></h1>
    <div aria-live="polite" toastContainer></div>
  `,
})
export class AppComponent implements OnInit {
  @ViewChild(ToastContainerDirective, { static: true })
  toastContainer: ToastContainerDirective;

  constructor(private toastrService: ToastrService) {}
  ngOnInit() {
    this.toastrService.overlayContainer = this.toastContainer;
  }
  onClick() {
    this.toastrService.success('in div');
  }
}

toastrService.clear(toastId?: number);

import { ToastrModule, ToastNoAnimation, ToastNoAnimationModule } from 'ngx-toastr';

@NgModule({
  imports: [
    // ...

    // BrowserAnimationsModule no longer required
    ToastNoAnimationModule.forRoot(),
  ],
  // ...
})
class AppModule {}

import { ToastrModule } from 'ngx-toastr';

@NgModule({
  imports: [
    ToastrModule.forRoot({
      toastComponent: YourToastComponent, // added custom toast!
    }),
  ],
  bootstrap: [App],
  declarations: [App, YourToastComponent], // add!
})
class AppModule {}

ngOnInit() {
    setTimeout(() => this.toastr.success('sup'))
}