You can't compare apples to oranges. In this presentation I bore down to the core of Angular and React, so you can choose the right framework for your next project. See the slides and links right here.
Contribute to open source projects and play around with cool code, like Isomer, or just clone repositories, look around and run the code.Check out Excella Labs
If you live in the DC Metro Area, join the polyglot meetup group, Tech Talk DC. Learn about different technologies from developers with diverse backgrounds and widen your horizons.Join Tech Talk DC
Go to Khan-As-A-Service and learn how it was built in Node.js and Express here. Then see the Django version with a tutorial here.