NPM version of threejs 88 and its addons.

install

npm i threejs-addons

import with... import

import * as THREELib from "threejs-addons";
var THREE = THREELib(); // return THREE JS
// or
var THREE = THREELib(["",]); // return THREE JS extended by its addons

import with require

var THREE = require("threejs-addons")(); // return THREE JS
// or
var THREE = require("threejs-addons")(["", ]); // return THREE JS extended by its addons

available addons