Hi guys, as a developer we should keep improving ourself. Udacity is a platform that offers a lot of useful resources for us to learn. This is the list of top free courses on Udacity I think it is worth to learn in this 2019.
Website Performance Optimization
Data Visualization and D3.js
Browser Rendering Optimization
Intro to Progressive Web Apps
Build Native Mobile Apps with Flutter
Intro to the Design of Everyday Things
Intro to DevOps
Scalable Microservices with Kubernetes
Networking for Web Developers
I really hope these best free courses on Udacity will help you guys to gain more knowledge in this 2019.