Function flushRoot

dash/deps/react-dom@18.3.1.js:26173–26183

(root, lanes)

  }

  function flushRoot(root, lanes) {
    if (lanes !== NoLanes) {
      markRootEntangled(root, mergeLanes(lanes, SyncLane));
      ensureRootIsScheduled(root, now());

      if ((executionContext & (RenderContext | CommitContext)) === NoContext) {
        resetRenderTimer();
        flushSyncCallbacks();
      }
    }
  }
  function batchedUpdates$1(fn, a) {
    var prevExecutionContext = executionContext;
    executionContext |= BatchedContext;