On Developpez.com, find the 'Débuter avec Node.js partie 3' tutorial. From this tutorial, identify the Express.js installation command, describe the suggested project file structure, and provide the code snippet used to create an Express application instance for a basic server setup.
Navigate to 'https://www.developpez.com/' Click on the 'Dév. Web' link. On the 'Dév. Web' page, click on the 'NodeJS' link. Locate and click on the tutorial titled 'Débuter avec Node.js partie 3'. Within the tutorial, navigate to the 'Installation' section and identify the Express.js installation command. Navigate to the 'Arborescence' section and identify the suggested project file structure. Navigate to the 'Serveur' section and identify the code snippet for creating an Express application instance. State the identified installation command, project structure, and code snippet.
Successfully navigate to the Node.js section of Developpez.com. Access the tutorial 'Débuter avec Node.js partie 3'. State the Express.js installation command as 'npm install express'. Describe the suggested project structure, including 'server.js' and a 'public' folder with 'index.html'. Provide the code snippet for creating an Express application instance as 'var app = express.createServer();'.