I've been a programmer for 30+ years.  It is my career and my hobby.  I have experience developing full-stack web apps, server-side multi-threaded programs, near real-time embedded systems, and writing Spark programs to extract data from Hadoop clusters.  Back in 2013 I became interested in AngularJS and soon after I started to spend a lot of time helping people learn the framework on StackOverflow and I got hooked.  At the end of 2015, I started learning Angular 2 (then 3, 4, 5, ...) and once again I started answering questions on StackOverflow.  The knowledge I've acquired I'll share with you.