cursor.objsLeftInBatch()¶

cursor.objsLeftInBatch()¶

mongo Shell Method

This page documents the mongo shell method, and does not refer to the MongoDB Node.js driver (or any other driver) method. 本页记录了mongo shell方法，未提及MongoDB Node.js驱动程序（或任何其他驱动程序）方法。For corresponding MongoDB driver API, refer to your specific MongoDB driver documentation instead.有关相应的MongoDB驱动程序API，请参阅特定的MongoDB驱动程序文档。

cursor.objsLeftInBatch() returns the number of documents remaining in the current batch.返回当前批次中剩余的文档数。

The MongoDB instance returns response in batches. MongoDB实例批量返回响应。To retrieve all the documents from a cursor may require multiple batch responses from the MongoDB instance. 要从游标检索所有文档，可能需要来自MongoDB实例的多个批处理响应。When there are no more documents remaining in the current batch, the cursor will retrieve another batch to get more documents until the cursor exhausts.当当前批次中没有剩余文档时，游标将检索另一个批次以获取更多文档，直到游标耗尽。