With my node(v16.13.2)

const os = require("os");

this is perfectly work.

But

import os from "os";

This gives me an error that Module 'os' has no default export

I don't understand why it is.

And why node is designed like that.

CodePudding user response：

you can fix this by saving the file with .mjs extension instead of .js, or by adding { "type": "module" } to your package.json file

CodePudding user response：

Try to use below command

npm i @types/node