Topics I want to cover in the future

ES6 features

Get to know Beacon API, seems like it would be useful for analytics capture and similar
Spread operator

Interesting Udacity courses

JavaScript testing - 2 weeks
JavaScript design patterns - 6 weeks
Web Tooling & Automation - 3 weeks
Offline Web Applications - 3 weeks
Responsive images - 2 weeks
OOP JavaScript - 5 weeks
Browser Rendering Optimization - 1 month