EcmaScript

Popular programming language, especially used for [web development](…/Web development/)

Resources

Server-side development

Full-stack frameworks

Redwood

Client-side frameworks

Angular
Alpine.js
- Alpine is a rugged, minimal tool for composing behavior directly in your markup. Think of it like jQuery for the modern web.
React
htmx

Libraries

Editor.js - JSON block WYSIWYG editor similar to what Wagtail offers

FAQ

What is the difference between .js and .mjs files?

Node.js’s original module system is CommonJs (which uses require and module.exports).
Since Node.js was created, the ECMAScript module system (which uses import and export) has become standard and Node.js has added support for it.
Node.js will treat .cjs files as CommonJS modules and .mjs files as ECMAScript modules. It will treat .js files as whatever the default module system for the project is (which is CommonJS unless package.json says "type": "module",).
See also: Differences between ES6 module system and CommonJs

Source