MongoDB Mastery

Document Model Basics

// MongoDB document (JSON-like structure)
{
  _id: ObjectId("507f1f77bcf86cd799439011"),
  firstName: "John",
  lastName: "Doe",
  email: "john@example.com",
  salary: 75000,
  department: "Engineering",
  skills: ["JavaScript", "Python", "SQL"],
  address: {
    street: "123 Main St",
    city: "New York",
    state: "NY"
  },