cursor.objsLeftInBatch() (mongosh method方法)

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. To retrieve all the documents from a cursor may require multiple batch responses from the MongoDB instance. 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.MongoDB实例分批返回响应。要从游标检索所有文档，可能需要MongoDB实例的多个批处理响应。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，直到游标用完为止。