Animation callbacks

Execute functions at specific points during an animation playback.
Callbacks Function are specified directly in the animate() parameters Object.

animate('.square', {
  translateX: 100,
  scale: 2,
  opacity: .5,
  duration: 400,
  delay: 250,
  ease: 'out(3)',
  loop: 3,
  alternate: true,
  autoplay: false,
┌─────────────────────┐
│ onBegin: () => {},  │
│ onLoop: () => {},   ├─ Callbacks
│ onUpdate: () => {}, │
└─────────────────────┘
});