Open VS Code
Open the integrated terminal
Go to the folder where you want the file
Run `touch filename.txt`
Run `code filename.txt` to open the file in VS Code
Run `nano filename.txt` if you want to create and edit it in terminal first
Run `mkdir foldername` to create a folder
Run `cd foldername` to enter the folder
Run `touch index.html` to create an HTML file
Run `touch app.js` to create a JavaScript file
Run `touch style.css` to create a CSS file