On Developpez.com, find a tutorial that explains how to set up a basic Express.js application. Identify and list the first three practical steps or code snippets needed to get started with an Express.js server, as described in the tutorial.
Navigate to 'https://www.developpez.com/' Click on the 'Dév. Web' link (id: 156). On the 'Dév. Web' page, click on the 'NodeJS' link (id: 376). Locate and click on the tutorial titled 'Débuter avec Node.js partie 3'. Scroll through the article to find the 'Installation' section and identify the Express.js installation command. Identify the suggested project 'Arborescence' (file structure). Locate the 'Serveur' section and identify the code snippet for creating an Express application instance.
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: '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: 'var app = express.createServer();'.