Function pop

dash/deps/react@18.2.0.js:2425–2439

(heap)

    return heap.length === 0 ? null : heap[0];
  }
  function pop(heap) {
    if (heap.length === 0) {
      return null;
    }

    var first = heap[0];
    var last = heap.pop();

    if (last !== first) {
      heap[0] = last;
      siftDown(heap, last, 0);
    }

    return first;
  }

  function siftUp(heap, node, i) {
    var index = i;