TypeScript is a statically typed superset of JavaScript that adds optional type annotations and modern language features to improve developer productivity and code safety.

The TypeScript compiler performs type checking at compile time, catching errors before code is run, and also transforms TypeScript code into clean standards-compliant JavaScript.

Jake Bailey is a senior software engineer at Microsoft where he works on TypeScript and has made

major contributions to the TypeScript compiler. Jake joins the podcast with Josh Goldberg

to talk about TypeScript and his work. 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 ES Slint,

the tooling that enables ES Slint and prettier to run on TypeScript code.

Josh is also the author of the O'Reilly Learning TypeScript book, a Microsoft MVP for developer

technologies, and a live code streamer on Twitch.

Find Josh on Blue Sky, Mastodon, Twitter, Twitch, YouTube, and dot com as Joshua K. Goldberg.

Music Joshua K. Goldberg.

Jake Bailey, welcome to Software Engineering Daily.

Hello. How's it going?

It's good. I'm so excited to talk to you, Jake. We've done so much work, and you've done so much work on TypeScript and its tooling.

Don't be fast.

What is your Blue Sky description, your profile say?

I think my profile says, according to Git Blame, I wrote the TypeScript compiler, which is like not true, but it is true if you don't bother to ignore all the migrations I've made.

So yes.

Then I guess if you look at the new repo, then it'll probably also say something similar.

There we go.

Less so.

The one and only author of TypeScript.

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