angular automatic typewriter animation
$ npm install angular-typing-animation --save
//app.module.ts
import { TypingAnimationDirective } from 'angular-typing-animation'
@NgModule({
...
declarations: [
TypingAnimationDirective,
...
//app.component.html
<span typingAnimation [typeSpeed]="20" [startDelay]="2000"
(complete)="onComplete()">
</span>