Function push

dash/deps/react@18.2.0.js:2417–2421

(heap, node)

  var frameYieldMs = 5;

  function push(heap, node) {
    var index = heap.length;
    heap.push(node);
    siftUp(heap, node, index);
  }
  function peek(heap) {
    return heap.length === 0 ? null : heap[0];
  }