It does smell like someone's pet project. I'm wondering what the folk at Microsoft had not figured out, that they indeed had at Figma. Typescript is open source, so why wasn't this optimisation just made as a contribution to Typescript at the time?
Also, was Typescript really as claimed in its "infancy" at the time mentioned in the article? They didn't mention a particular year.
Also, was Typescript really as claimed in its "infancy" at the time mentioned in the article? They didn't mention a particular year.