Most if not all use CSS and javascript, but he mentioned a ton of techniques in such a way as to imply that most websites use all of them or that you needed to know all of them to do web development.
That is just not true. I am sure that most web developers don't know d3, svg (other than exporting it from a drawing program) or typescript.
That is just not true. I am sure that most web developers don't know d3, svg (other than exporting it from a drawing program) or typescript.