Tools & Platforms Installed Vercel Render MongoDB Atlas MongoDB compass React + Node.js Setup First, I installed Node.js and verified the installation using Command Prompt. Then I created my React project using Vite. After setup, my react app(in local host): Creating My Node.js Server I created a file named: server.js Then I wrote a simple Node.js server and executed the code. Calculator Project I created a simple calculator using Node.js that performs: Addition Subtraction Multiplication Division The output: Express.js Introduction I created a new folder: myapp Inside the folder: npm init npm install express After installation, the node_modules folder was automatically created. Then I created named "app.js" and executed that code.…