mongodbHow to use findone in MongoDB?

MongoDB's findOne() method is used to query a collection and return a single document that matches the specified query criteria.

Example

db.collection.findOne({name: "John"})

Output example

{
  "_id": ObjectId("5f3d7f8d3f9f8d7f8d7f8d7f"),
  "name": "John",
  "age": 25
}

Code explanation

• db.collection: specifies the collection to query
• findOne(): the method used to query the collection
• {name: "John"}: the query criteria, in this case, the document must have a name field with the value John

Helpful links

• MongoDB Documentation - findOne()

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