mongoose express js require

  1. Install Node.js and npm on your machine if you haven't already.
  2. Create a new directory for your project.
  3. Open a terminal and navigate to the directory you just created.
  4. Run the command "npm init" to create a new package.json file for your project.
  5. Install Express.js by running the command "npm install express".
  6. Create a new file, for example "app.js", and require Express at the top of the file using the following code: "const express = require('express')".
  7. Now you can start using the Express framework in your "app.js" file to build your web application.