ESLint is the de facto standard for linting JavaScript and TypeScript. Chances are, every project you’ve worked on uses it - whether you realize it or not.

In this talk, we’ll explore how ESLint works, how its rules are written, and which technologies it utilizes. We’ll also create our own custom rules in a live coding session.

This talk is intended for intermediate developers who want to deepen their understanding of the tools they use every day. If you’ve ever wondered what an AST is - or wanted to take ESLint beyond the defaults - this session is for you.