What is .env File? | Environment Variables Explained in Node.js

The .env file is used to store environment variables such as API keys, database URLs, and secret values securely outside your source code.

In this video, you’ll learn:
What is a .env file
Why we use environment variables
How to create and use a .env file in Node.js
How to keep sensitive data secure
Using the dotenv package in Node.js
This is an essential concept for backend development, especially when working with Node.js, Express, APIs, and production environments.

📌 Topics Covered:
Environment variables in Node.js
dotenv package explained
.env file example
Security best practices
Config management in backend apps
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Node.js env file
dotenv Node.js
backend development
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dotenv tutorial
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Видео What is .env File? | Environment Variables Explained in Node.js канала Big Brains