Function children

packages/react-aria-components/src/Collection.tsx:218–237

(node)

    items: parent ? collection.getChildren!(parent.key) : collection,
    dependencies: [renderDropIndicator],
    children(node) {
      // Return a empty fragment since we don't want to render the content twice
      // If we don't skip the content node here, we end up rendering them twice in a Tree since we also render the content node in TreeItem
      if (node.type === 'content') {
        return <></>;
      }

      let rendered = node.render!(node);
      if (!renderDropIndicator || node.type !== 'item') {
        return rendered;
      }

      return (
        <>
          {renderDropIndicator({type: 'item', key: node.key, dropPosition: 'before'})}
          {rendered}
          {renderAfterDropIndicators(collection, node, renderDropIndicator)}
        </>
      );
    }
  });
}