Function addAnimationToLView

packages/core/src/animation/utils.ts:382–390

(
  animations: Map<number, EnterNodeAnimations | LeaveNodeAnimations>,
  tNode: TNode,
  fn: RunEnterAnimationFn | RunLeaveAnimationFn,
)

 * @param fn The animation function to be called later
 */
export function addAnimationToLView(
  animations: Map<number, EnterNodeAnimations | LeaveNodeAnimations>,
  tNode: TNode,
  fn: RunEnterAnimationFn | RunLeaveAnimationFn,
) {
  const nodeAnimations = animations.get(tNode.index) ?? {animateFns: []};
  nodeAnimations.animateFns.push(fn);
  animations.set(tNode.index, nodeAnimations);
}

export function cleanupAfterLeaveAnimations(
  resolvers: VoidFunction[] | undefined,