Installing MEAN Stack on Ubuntu 18.04

The MEAN stack is a full stack JavaScript development framework that is used to build dynamic web applications. It consists of MongoDB, Express.js, AngularJS, and Node.js. Here's a step-by-step guide to installing the MEAN stack on Ubuntu 18.04:

1. Install Node.js: Open a terminal and run the following commands:
   curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -
sudo apt-get install -y nodejs
2. Install MongoDB: Run the following commands:
   wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
sudo apt-get update
sudo apt-get install -y mongodb-org
sudo systemctl start mongod
sudo systemctl enable mongod
3. Install Express.js: Create a new directory for your application and navigate into it. Then, run the following command:
   npm install express --save
4. Install AngularJS: Inside your application directory, run the following command:
   npm install angular --save

Once you have installed the necessary components, you can start building your MEAN stack application. MongoDB is used as the database, Express.js provides the server-side framework, AngularJS is used for the front-end development, and Node.js is responsible for running server-side JavaScript. The MEAN stack allows for quick and efficient development of web applications using JavaScript throughout the entire stack.