mongodbHow to find in array in MongoDB?

MongoDB provides a powerful $elemMatch operator to query array elements. This operator can be used to match a single element or multiple elements of an array.

Example

db.collection.find(
   { arrayField: { $elemMatch: { <query1>, <query2>, ... } } }
)

This example will return documents where the arrayField contains at least one element that matches all the query criteria.

Code explanation

1. db.collection.find - This is the MongoDB command to query a collection.
2. { arrayField: { $elemMatch: { <query1>, <query2>, ... } } } - This is the query criteria to match array elements. arrayField is the name of the array field, $elemMatch is the operator to match array elements, and <query1>, <query2>, ... are the query criteria for the array elements.

Helpful links

• MongoDB Documentation - Query an Array

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