JS - 3 ways to import module

// greeting.js
export function hello() {
  return 'hello';
}

export default function hi() {
  return 'hi';
}

import { hello } from './greeting.js'

hello();

import hi from './greeting.js

hi();

import hi, { hello } from '.greeting.js'

hi();
hello();

import * as Greeting from './utils'

Greeting.hello(); //=> "hello"
Greeting.default(); //=> "hi"