// ./fruitBasket.ts
export class Fruit {}
export type FruitBasket = Fruit[];
export const fruit: FruitBasket = [];

// ./main.ts
import { FruitBasket, Fruit } from "./fruitBasket.ts";

export function addToBasket(basket: FruitBasket) {
  basket.push(new Fruit());
}

// ./main.ts
import type { FruitBasket, Fruit } from "./fruitBasket.ts";

new Fruit(); // Type Error: 'Fruit' cannot be used as a value because it was imported using 'import type'.

// fruitBasket.js
export default new FruitBasket();

// main.js
import * as fruitBasketModule from "./fruitBasket.js";
import fruitBasketDefault from "./fruitBasket.js";
const fruitBasketRequire = require("./fruitBasket.js");

console.log(fruitBasketModule); // { default: [Function: FruitBasket] }
console.log(fruitBasketDefault); // [Function: FruitBasket]
console.log(fruitBasketRequire); // { default: [Function: FruitBasket] }

// fruitBasket.js
module.exports = new FruitBasket();

// main.js
import * as fruitBasketModule from "./fruitBasket.js"; // Error: File './fruitBasket.ts' is not a module.
import fruitBasketDefault from "./fruitBasket.js"; // Error: File './fruitBasket.ts' is not a module.
const fruitBasketRequire = require("./fruitBasket.js");

console.log(fruitBasketRequire); // [Function: FruitBasket]

// fruitBasket.js
export = new FruitBasket()

// main.js
import FruitBasket = require('./fruitBasket.js')

console.log(FruitBasket) // [Function: FruitBasket]

Exporting Types

ES Modules vs CommonJS