This is probably a very simple question, but I can't figure it out even after reading many articles. I don't know any Node.js, and I just want to use the uuid generator from here.

When I follow the instruction and put

import { v4 as uuidv4 } from 'uuid';
uuidv4();

The browser tells me "Uncaught TypeError: Failed to resolve module specifier "uuid". Relative references must start with either "/", "./", or "../"." I'm guessing maybe I need to import some .js file from "node_module", so I opened the node_module and only see a lot of files that I don't understand at all. This is very frustrating, and the same problem may occur when I try to use any other npm modules in the future.