Chapter VII · Objects

What is an Object?

An object is a composite data structure containing key-value pairs representing state and behavior.

01 How It Works

Think of a physical profile identity card storing labeled details.

Objects group related variables (properties) and functions (methods) into a single entity.

example.js
const user = { name: "Alice", age: 25 };
  1. 1. Initialize with curly braces {}.

  2. 2. Define key-value pairs separated by commas.

  3. 3. Access stored data via keys.

02 Practical Example

Here is how you might see this concept applied in real-world code:

practical.js
const book = { title: "JavaScript Guide", pages: 350 };
console.log(book.title);

Key Takeaway

Objects model complex real-world entities cleanly in code.

Related Concepts