Closures Courses

Generating Generators in Go - Static Analysis and Code Generation
GoLab conference via YouTube

The Imperatives Must Go - Functional Programming in Modern C++
CppCon via YouTube

Advanced JavaScript Concepts
Packt via Coursera

Modern JavaScript with ES6
Packt via Coursera

The Complete Modern JavaScript Course with ES6
Packt via Coursera

Introduction to Rust Programming and Core Concepts
Packt via Coursera

The Imperatives Must Go! - Functional Programming Techniques in Modern C++
Meeting Cpp via YouTube

Lambdas - How to Capture Everything and Stay Sane
Meeting Cpp via YouTube

Advanced JavaScript 3: Objects, Collections, Functions
Scrimba via Coursera