how to export class in javascript code example

Example 1: js import and export

// helloworld.js

export function helloWorld() {
	return 'Hello World!';
}

// main.js

import helloWorld from './helloworld.js';

console.log(helloWorld());

Example 2: js class export

export class ClassName {...}

Example 3: export function javascript

// module "mon-module.js"
export default function cube(x) {
  return x * x * x;
}