How to Create a Node.js and Express App from Scratch. Create a new file named application inside the main directory. Let's build a Node.js and Express app right from scratch! Make sure you have Node.js and npm installed on your device.
Make sure you have Node.js and npm installed on your device.
Download the latest version of Node.js for your operating system. The npm executables get installed along with Node.js, so you don't need to worry about it. If you are unsure whether your system has Node.js preinstalled, just dive into your terminal and hit:
If the terminal shows some version like v13.x, v14.x, or v15.x then you are all set to go.
The next step is to create a working directory for our app. Head over to your terminal and
cd into the directory where you want to have your express app. Make a new folder using
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