Angular10 Trigger Animation

import { LOCALE_ID, NgModule } 
from '@angular/core';

import { BrowserModule }
from '@angular/platform-browser';
import {BrowserAnimationsModule} 
from '@angular/platform-browser/animations';
import { AppRoutingModule }
from './app-routing.module';
import { AppComponent }
from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule,
    BrowserAnimationsModule
  ],
  providers: [
      { provide: LOCALE_ID, useValue: 'en-GB' },
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

import { 
  // Trigger is imported here
  trigger, 
  state, 
  style, 
  transition, 
  animate } from '@angular/animations';
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ],
  animations: [

    // Trigger is used here
    trigger('geek',[
      state('green', style({
        'background-color': 'green',
        transform: 'translateX(0)'
      })),
      state('blu', style({
        'background-color': '#49eb34',
        transform: 'translateX(0)'
      })),
      transition('green => blu',animate(1200)),
      transition('blu => green',animate(1000))
    ])
  ]
})
export class AppComponent  {
  state = 'green';
  anim(){
    this.state == 'green' ?
    this.state = 'blu' : this.state = 'green';
  }
}