There are two ways to export from a module in JavaScript. These are default and named exports. You can use them together if needed!

Default export

If you need to export one main 'thing' from a module, you can use a default export. In the following example, we fetch data from an API (using top-level await) and export it from the module:

const API = "";

let users;

async function getJSON(response) {
if (response.ok) {
const data = await response.json();
return Promise.resolve(data);

const { status, statusText } = response;
const error = new Error(`${status} ${statusText}`);

return Promise.reject(error);

try {
const response = await fetch(API);
users = await getJSON(response);
} catch (error) {
users = error;

export default users;

In another module, we could import the users data like so:

import users from "./users.js";

Named exports

There's other useful stuff in our module, such as the API constant and the getJSON() function. We could export these as named exports:

export { API, getJSON };

In another module, we could import these like so:

import { API, getJSON } from "./users.js";

Default and named exports

We could export the default users data and the named utilities like so:

export { users as default, API, getJSON };

In another module, we could import the default export and the named exports like this:

import users, { API, getJSON } from "./users.js";

If you've used React before, this probably looks familiar. This is how you import the main React library along with some hooks:

import React, { useState, useEffect } from "react";

Further reading