angular-animation-2.js

const specificAnimation1 = [
  /* specific animation here */
]

const specificAnimation2 = [
  /* specific animation here */
]

const specificAnimation3 = [
  /* specific animation here */
]

const specificAnimation4 = [
  /* specific animation here */
]

export const routerTransition = trigger('routerTransition', [
  transition('* => page1', specificAnimation1),
  transition('* => page2', specificAnimation2),
  transition('* => page3', specificAnimation3),
  transition('* => page4', specificAnimation4),
]);