To add JavaScript in Visual Studio Code, you need to install VSCode first and then Node.JS. Once done, create a .JS file, write codes, and then start writing codes.

After updating the system, install Node.js and npm, which are critical for managing dependencies and running Claude Code. Use the following command: sudo apt install nodejs npm ...

How to install Node versions and switch between them Once you have NVM, you're ready to use the tool to install and manage different Node.js versions to use your laptop for programming.