TypeScript is definitely by far the most important thing mentioned in the article. And no I didn't even read the article. I just searched it for the word TypeScript to see what it said. However, the author apparently is pretty clueless because he implied TypeScript has something to do with Angular. It doesn't. TypeScript is needed ANY time the runtime is JavaScript. Namely, in the browser. The only other technology TypeScript has ANYTHING do to with is JavaScript itself.