Microsoft called the code—written by the company’s founder, Bill Gates, and its second-ever employee, Ric Weiland—”one of the ...

Me, when I started programming again in the 2010s—after a 25-year gap—I turned instead to newer languages like Python and JavaScript.

The app (available for Android and iOS) teaches you Javascript through a series of tiny games and puzzles, the idea is that you’re learning but enjoying your time as well. What do you think so far?