Objects in JavaScript

Objects are complex data structures in JavaScript that store key-value pairs. They allow developers to represent real-world entities and organize related data into a single unit.

Creating Objects

Objects are created using curly braces {}. A colon separates each key-value pair, and commas separate multiple pairs.

let person = {

name: 'John Doe',

age: 30,

isStudent: true,

};

Accessing Object Properties

Object properties can be accessed using dot notation or square brackets.

console.log(person.name); // Output: 'John Doe'

console.log(person['age']); // Output: 30

Modifying Object Properties

Object properties can be modified by reassigning their values.

person.age = 31;

console.log(person.age); // Output: 31

Nested Objects

Objects can contain other objects as values, creating nested data structures.

let student = {

 name: 'Alice',

 age: 25,

 address: {

  city: 'New York',

  zipCode: '10001',

 },

};

console.log(student.address.city); // Output: 'New York'