dat.gui.js: GUI for testing changing variables in JavaScript

dat.gui - npm

dataarts/dat.gui: Lightweight controller library for JavaScript. @GitHub

A lightweight graphical user interface for changing variables in JavaScript.

often used for dev testing with three.js

Three.js – JavaScript 3D Library

three.js examples

Dat GUI - Three.js Tutorials

Three.js and TypeScript Dat.GUi lesson

Sean-Bradley/Three.js-TypeScript-Boilerplate: Three.js TypeScript Boilerplate