cursor.objsLeftInBatch()
This is a mongosh method. This is not the documentation for Node.js or other programming language specific driver methods.
In most cases, mongosh methods work the same way as the legacy mongo shell methods. However, some legacy methods are unavailable in mongosh.
For the legacy mongo shell documentation, refer to the documentation for the corresponding MongoDB Server release:
For MongoDB API drivers, refer to the language specific MongoDB driver documentation.
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，游标将检索另一批次以获取更多文档，直到游标耗尽。