Prettier and Opinionated Code Formatting with James Long

Developer tooling shapes how software gets written day to day, but the best tools often disappear into the background once they succeed. Formatting, linting, and build systems can either create friction and endless debate, or quietly remove entire classes of problems from a team’s workflow. Over the past decade, the JavaScript ecosystem has wrestled with both extremes as it scaled rapidly and accumulated complexity.

Prettier emerged as a response to the surprisingly human problem of engineers spending too much time debating code style instead of building software. It offers a deterministic, opinionated formatter that helped normalize automation as part of everyday development.

James Long is a design and product engineer who has worked at Mozilla and Stripe, and he’s the creator of Prettier. He joins the show with Josh Goldberg to talk about the origins of Prettier, why formatting debates are so emotionally charged, the technical challenges of building formatters, the realities of maintaining popular open-source tools, and how the JavaScript tooling ecosystem continues to evolve.

Josh Goldberg is an independent full time open source developer in the TypeScript ecosystem. He works on projects that help developers write better TypeScript more easily, most notably on typescript-eslint: the tooling that enables ESLint and Prettier to run on TypeScript code. Josh regularly contributes to open source projects in the ecosystem such as ESLint and TypeScript. Josh is a Microsoft MVP for developer technologies and the author of the acclaimed Learning TypeScript (O’Reilly), a cherished resource for any developer seeking to learn TypeScript without any prior experience outside of JavaScript. Josh regularly presents talks and workshops at bootcamps, conferences, and meetups to share knowledge on TypeScript, static analysis, open source, and general frontend and web development.

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