const p1 = new Promise(resolve => setTimeout(() => 
resolve('Slow'), 200));
const p2 = new Promise(resolve => setTimeout(() => resolve('Fast'), 100));
Promise.race([p1, p2]).then(result => console.log(result));

.container {
  scroll-snap-type: y mandatory;
}
.item {
  scroll-snap-align: start;
}

const result = Array.from({ length: 5 }, (_, i) => i * 2);
console.log(result);