Maximum Number of Eaten Apples LeetCode solution in JavaScript

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var eatenApples = function (apples, days) {
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  const heap = new MinPriorityQueue({ priority: (x) => x[0] });
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  let totalApple = 0;
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  for (let i = 0; i < apples.length; i++) {
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    heap.enqueue([i + days[i], apples[i]]);
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    while (!heap.isEmpty()) {
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      const [expire, count] = heap.front().element;
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      if (!count || expire <= i) heap.dequeue();
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      else break;
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    }
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    if (heap.isEmpty()) continue;
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    totalApple++;
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    heap.front().element[1]--;
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  }
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  let i = apples.length;
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  while (!heap.isEmpty()) {
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    const [expire, count] = heap.dequeue().element;
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    if (!count || expire <= i) continue;
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    totalApple += Math.min(count, expire - i);
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    i = Math.min(expire, i + count);
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  }
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  return totalApple;
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};