Which method takes the filter in MongoDB?

MongoDBJunior~1 min read

The filter is given as the first argument to most CRUD methods, such as:

find()
findOne()
updateOne() / updateMany()
replaceOne()
deleteOne() / deleteMany()

Example:

db.users.find({ age: 25 })       // filter: { age: 25 }
db.users.updateOne({ name: "Alex" }, { $set: { age: 26 } })
db.users.deleteMany({ isActive: false })

So: the filter is always passed as the first parameter to the method that finds, updates, or deletes documents.

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