What is tsconfig-bases?

When you write code in TypeScript, you need a configuration file that tells the compiler how to behave, things like which JavaScript version to output or how strict the error checking should be. Getting these settings right for your specific setup can be tricky. This project provides ready-made configuration files for common environments so you don't have to figure them out yourself. You just pick the one matching your setup and tell your project to use it. The project offers a menu of pre-built configurations for specific platforms and frameworks. For example, if you're building a web app with Next.js, there's a config for that. If you're writing code that runs on Node.js version 20, there's one for that too. You install the relevant package as a dependency, then point your project's TypeScript file at it. Starting with TypeScript version 5, you can even combine multiple configs, say, stacking a strictest-rules setup on top of a Node.js one. This is useful for developers who want sensible, community-vetted TypeScript settings without hand-tuning every option. A team starting a new React Native app can grab the matching config and know it's set up correctly, rather than copying random settings from a blog post. It's also handy for solo developers who want a quick, reliable starting point. The project is community-maintained, meaning contributors keep the configurations up to date as platforms and TypeScript itself evolve. The README doesn't go into detail on exactly which compiler options each config sets, but the overall idea is simple: instead of writing your TypeScript setup from scratch, you borrow one that experts have already dialed in for your environment.