Glossary

L

Language Config

The configuration file specifies the root files and the options for the features provided by the language service.

ESLint React uses the Language Config to provide information (e.g. JSX Transform) about the code it is linting.

For TypeScript or JavaScript files, the Language Config are typically named tsconfig.json or jsconfig.json and are located in the root of a project.

For MDX files, the Language Config is the "mdx" property in the tsconfig.json file.

Language Preference

Language Preference is a set of rules that represents the user's preference for how code should be formatted.

ESLint React provides a way to customize the code style used in the internal fixer's output through Language Preference.