export { default } from './index-default.js';
export * from './index.js';This module is the package entry point for ES module users. In other words, it is the module they are interfacing with when they import from the whole package instead of from a submodule, like this:
import { map } from 'underscore';
The difference with ./index-default, which is the package entry point for
CommonJS, AMD and UMD users, is purely technical. In ES modules, named and
default exports are considered to be siblings, so when you have a default
export, its properties are not automatically available as named exports. For
this reason, we re-export the named exports in addition to providing the same
default export as in ./index-default.
export { default } from './index-default.js';
export * from './index.js';