$ npm install animejs
$ npm install animejs-builder

$ yarn add animejs
$ yarn add animejs-builder

<script src="https://cdn.jsdelivr.net/npm/[email protected]/lib/AnimeBuilder.iife.min.js"></script>

import anime from 'animejs';
import AnimeBuilder from 'animejs-builder'

const moveHorizontal = (length, duration) => {
  return {
    translateX: [
      {
        value: length, 
        duration: duration, 
        easing: 'easeInOutQuad'
      }
    ]
  }
}

const builder = new AnimeBuilder({
  targets: '.circle',
  autoplay: true
});

const animation = builder
  .add(moveHorizontal(200, 500))
  .add(moveHorizontal('+=200', 800))
  .add(moveHorizontal(0, 1000))
  .generateAnime();

const animation = builder
  .add({
    translateX: [
      {value: 100, duration: 1000}
    ]
  })
  .add({
    scaleX: [
      {value: 5, duration: 500}
    ]
  })
  .generateAnime();

{
  translateX: [
    {value: 100, duration: 1000}
  ]
  scaleX: [
    {value: '*=1', duration: 1000},
    {value: 5, duration: 500}
  ]
}

{
  translateX: [
    { value: 100, duration: 1000}
  ]
}

{
  opacity: [
    { value: 100, duration: 1000}
  ],
  rotateX: [
    { value: '80deg', duration: 800},
    { value: '0deg', duration: 400}
  ]
}