I started learning reactive programming in javascript using RxJS and it's my first time using node. I don't exactly know what I'm doing wrong. Here is the code:

const array = [
    '1', 'Max', '2', '3', '4', '5', 'IoT', '6', '7', '8', '9'
];

const stream = Rx.Observable.from(array);

This is the error:

TypeError: Rx.Observable.from is not a function

This is what I've tried so far:

I've installed RxJS using node install rxjs, nothing else. I've tried importing from directly using import:

import { from } from 'rxjs';

When I've tried importing from using import, I've gotten this error:

SyntaxError: Cannot use import statement outside a module.

I've tried to go in the package-lock.json file and add the type of the module to module, but I've gotten the same error:

This is what I've tried doing to the package-lock.json file:

{
  "requires": true,
  "lockfileVersion": 1,
  "dependencies": {
    "rxjs": {
      "version": "7.4.0",
      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.4.0.tgz",
      "integrity": "sha512-7SQDi7xeTMCJpqViXh8gL/lebcwlp3d831F05+9B44A4B0WfsEwUQHR64gsH1kvJ+Ep/J9K2+n1hVl1CsGN23w==",
      "requires": {
        "tslib": "~2.1.0"
      },
      "type": "module"
    },
    "tslib": {
      "version": "2.1.0",
      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==",
      "type": "module"
    }
  }
}

Sources:

Cannot use import statement outside a module...

fromArray is deprecated, use from

The question is :

How can I use from in RxJS