Here is my take.. The arrival of TypeScript has coincided with a massive, massive increase in code quality and engineering robustness within the Javascript lib

Here is my take.. The arrival of TypeScript has coincided with a massive, massive increase in code quality and engineering robustness within the Javascript library ecosystem. Sure Javascript itself has increased in popularity and brought a new breed of software engineer into the mix, but it's probably not a coincidence that the people leading a lot of these modern and now ubiquitous library/framework efforts are drawn to TypeScript; people who probably wouldn't have touched Javascript with a 10 foot pole otherwise.