Difference Between Variables and Objects in JavaScript

The variables and objects are fundamental concepts but they serve different purposes. The Variables are used to store data values while objects are used to group related data and functions into a single entity.

JavaScript Variable

A variable in JavaScript is a named container that stores a value. It can be created using the var, let, or const.

Syntax:

let variable_name = value;
const variable_name = value;

Example: In this example, age is a variable that holds a numeric value and name is a variable holding the string value.

let age = 35;
const name = 'Kumar';
console.log("Age: " + age);
console.log("Name: " + name);

Output:

Age: 35
Name: Kumar

JavaScript Object

An object in JavaScript is a complex data structure that groups related data together using the key-value pairs.

Syntax :
let object_name = {
key1 : value1,
key1 : value1,
        ...
};

Example: In this example, The person is an object with the properties like name, age, hobbies and address. It includes both the primitive data types and other objects.

let person = {
    name: 'Kumar',
    age: 25,
    hobbies: ['reading', 'painting'],
    address: {
        street: '127 Main St',
        city: 'Bangalore City'
    }
};
console.log("Name: " + person.name);
console.log("Age: " + person.age);
console.log("Hobbies: " + person.hobbies.join(', '));
console.log("Street: " + person.address.street);
console.log("City: " + person.address.city);

Output:

Name: Kumar
Age: 25
Hobbies: reading, painting
Street: 127 Main St
City: Bangalore City

Difference between variables and object in JavaScript

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Article Tags :

• JavaScript
• Web Technologies
• javascript-basics