Problem

Given a MongoDB document containing a user's id, name, and email, write a function to update the email field for all users whose id is greater than 100.
Example input:
{
  "id": 1,
  "name": "John",
  "email": "john@example.com"
}
Example output:
{
  "id": 1,
  "name": "John",
  "email": "john@example.com"
}
{
  "id": 101,
  "name": "Jane",
  "email": "jane@example.com"
}

Solution

// Solution:

// The optimal solution is to use the $gt operator to find all documents where the id is greater than 100.
// Then we can use the $set operator to update the email field for all documents that match the query.

db.users.updateMany(
  { id: { $gt: 100 } },
  { $set: { email: "jane@example.com" } }
);