how to update all documents in mongodb code example

Example 1: mongo change all documents on field

//Update all documents with "oldName" to "newName"
db.names.updateMany({ "name": "oldName" }, {  $set: { "name" : "newName" }  })

Example 2: mongodb update

db.collectionName.update({"aField":"vale1"},{$set:{"anotherField":"value2"}})

-search for documentations for more examples than search
-aField is used to find the documents
-anotherField is the field that will be updated
-You can also use the below:
-- updateOne
-- findOneAndUpdate