cursor.itcount() (mongosh method方法)

Definition定义

cursor.itcount()

Important

mongosh Method方法

This page documents a mongosh method. This is not the documentation for a language-specific driver, such as Node.js.本页记录了一种mongosh方法。这不是针对特定语言驱动程序（如Node.js）的文档。

For MongoDB API drivers, refer to the language-specific MongoDB driver documentation.有关MongoDB API驱动程序，请参阅特定语言的MongoDB驱动程序文档。

Counts the number of documents remaining in a cursor.统计游标中剩余的文档数。

itcount() is similar to cursor.count(), but actually executes the query on an existing iterator, exhausting its contents in the process.itcount()类似于cursor.count()，但实际上是在现有迭代器上执行查询，在此过程中耗尽其内容。

The itcount() method has the following prototype form:itcount()方法具有以下原型形式：

db.collection.find(<query>).itcount()

Tip

cursor.count()

Compatibility兼容性

This method is available in deployments hosted in the following environments:此方法在以下环境中托管的部署中可用：

• MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud：云中MongoDB部署的完全托管服务

• MongoDB Enterprise: The subscription-based, self-managed version of MongoDB：MongoDB的基于订阅的自我管理版本
• MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB：MongoDB的源代码可用、免费使用和自我管理版本