Closures Courses

JavaScript: Scope
LinkedIn Learning

Learning Groovy
LinkedIn Learning

Learn Modern JavaScript: Advanced Topics
Skillshare

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

JavaScript: Verstehe die seltsamen Teile
Udemy

Manifolds
The Bright Side of Mathematics via YouTube

Programming Terms
Corey Schafer via YouTube

Go Programming Language
Lucid Programming via YouTube

Apprendre et Maîtriser JavaScript
YouTube