Promises Courses

Learn Asynchronous JavaScript
Codecademy

JavaScriptをとことんやってみよう【超初心者から脱初心者へレベルアップ】【わかりやすさ重視】
Udemy

JavaScript Funcional e Reativo - PENSE como um Dev JS
Udemy

JavaScript: Async
LinkedIn Learning

Learning ECMAScript 6+ (ES6+)
LinkedIn Learning

The Full JavaScript & ES6 Tutorial - (including ES7 & React) [2/2]
Skillshare

FREE JavaScript for Beginners & Professionals 2022
Udemy

JavaScript as a Second Language
LinkedIn Learning

ES2015 Crash Course
Laracasts

JavaScript Callbacks, Promises, and Async - Await Explained
LearnWebCode via YouTube