Douglas Crockford is one of the best-known JavaScript developers and lecturers, as well as the originator of the JSON format. He is also a leading thinker on the advantages (and disadvantages) of JavaScript’s various features, and on the future of the language. In this talk from 2013, Crockford lists the many things that JavaScript does well, which have led it to be (as he describes it) the world’s most popular programming language.