TC39

In this episode, Daniel joins Josh Goldberg to talk about the features of TypeScript 7.

They discuss the TypeScript team's approach to tooling, TypeScript's relationship with the TC39 standards process behind JavaScript, the new API and IPC boundary, how LLMs could reshape type checking and linting, and more.

This episode is hosted by Josh Goldberg, an independent full-time open source developer.

Josh works on projects in the TypeScript ecosystem, most notably TypeScript ESLint, a powerful static analysis toolset for JavaScript and TypeScript.

So you've talked about the sort of positioning in the ecosystem empathy, that at the time Microsoft really needed to prove that, yes, they can make an open source project that would actually be good for JavaScript developers on a, you know, a technical and a situational level.

But also, the technical problem of TypeScript was not yet solved at that time.

What was the relationship between TypeScript and JavaScript? So for those who maybe don't work in that ecosystem or, uh, don't deeply understand TC39, which we can get into later, what is the relationship between TypeScript and JavaScript, and why was that such a difficult thing to figure out around 1.0?

You'll have to take a little bit of what I say with a grain of salt, because as I said, you know, I had joined only a few weeks after TypeScript hit 1.0. And maybe this is a, this is just me, maybe this is a shared experience, but for a lot of...