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MongoDB Aggregation $count

Aggregation $count

This aggregation stage counts the total amount of documents passed from the previous stage.


In this example, we are using the "sample_restaurants" database loaded from our sample data in the Intro to Aggregations section.

    $match: { "cuisine": "Chinese" }
    $count: "totalChinese"
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This will return the number of documents at the $count stage as a field called "totalChinese".