Find Project exercise: incorrect example and resource link

[VAggrippino]

In the Find Project exercise, we're supposed to return documents with only the name and age properties using the MongoDB Node.js Driver.

The example provided shows a projection argument to the collection's find() method and references the documentation for this method as a resource link. However, this is the method's implementation in Mongo Shell. The find() method in NodeJS doesn't have a projection argument. Instead, a projection is applied using the project() method on the Cursor returned by find().

An accurate example would look like this:

collection.find({
  name: 'foo'
}).project({
  name: 1,
  age: 1,
  _id: 0
})

References:

• https://stackoverflow.com/a/49252319/2948042
• https://docs.mongodb.com/manual/tutorial/project-fields-from-query-results/ (compare the Mongo Shell tab to the Node.js tab)
• http://mongodb.github.io/node-mongodb-native/2.2/api/Collection.html#find (only one parameter: query)
• http://mongodb.github.io/node-mongodb-native/2.2/api/Cursor.html