Let's practice modules

Setup

• npm install
• npm start
• What shows up in the terminal?
• If you are on a windows machine, remove the single quotes from package.json in "start": "nodemon --exec 'babel-node src/index'",

Do

• Implement code for subtract module
• Add file and implement code for multiply module
• Add file and implement code for divide module
• Implement code for addOne in the addNumbers module
• Import and use addOne in index.js
• Add file and implmemnt code for subtractNumbers module
• Run yarn start
• Make sure there are no errors