Function includesOnlyTransitions

packages/react-reconciler/src/ReactFiberLane.js:627–629

(lanes: Lanes)

  return (lanes & UrgentLanes) === NoLanes;
}
export function includesOnlyTransitions(lanes: Lanes): boolean {
  return (lanes & TransitionLanes) === lanes;
}

export function includesTransitionLane(lanes: Lanes): boolean {
  return (lanes & TransitionLanes) !== NoLanes;