Objects in javascript.

What is an Object in JavaScript?

An object in JavaScript is a collection of data stored in key–value pairs. It helps us group related information together in a structured way.

Example:

let person = {
  name: "Arun",
  age: 22,
  city: "Chennai"
};

Here, name, age, and city are keys, and their corresponding values store information about the person.

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Why Are Objects Important?

Without objects, we would store related data in separate variables, making our code messy and harder to manage.

Objects help us:

• Organize data efficiently
• Represent real-world entities
• Write clean and maintainable code

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Why Do We Need Objects?

Objects are essential because they allow developers to:

• Group related data together
• Build scalable applications
• Represent complex data structures easily

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Common Uses of Objects

Objects are widely used in JavaScript for:

• Storing user data
• Managing products in e-commerce applications
• Handling API responses
• Structuring application data

Example:

let product = {
  name: "Laptop",
  price: 50000,
  inStock: true
};

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CRUD Operations in Objects

CRUD stands for:

• Create
• Read
• Update
• Delete

These are the basic operations we perform on object data.

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Step-by-Step Example

1. Create an Object

let user = {
name: "Rahul",
age: 25
};

2. Read Data

console.log(user.name);
console.log(user.age);

screenshot of the program:

3. Update Data

user.name="Maddy"
user.age = 23;

screenshot of the program:

4. Add New Property

user.city = "Chennai";
user.branch="ECE"

screenshot of the program:

5. Delete Property

delete user.branch;

screenshot of the program:

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