For reference information on these configuration formats, refer to the following documentation:

To get started, use the [configuration migrator](https://npmjs.com/package/@eslint/migrate-config) on your existing configuration file (`.eslintrc`, `.eslintrc.json`, `.eslintrc.yml`), like this:

{{ npx_tabs({

}) }}

This will create a starting point for your `eslint.config.js` file but is not guaranteed to work immediately without further modification. It will, however, do most of the conversion work mentioned in this guide automatically.

While the configuration file format has changed from eslintrc to flat config, the following has stayed the same:

In eslintrc files, use the `extends` property to use predefined and shareable configs. ESLint comes with two predefined configs that you can access as strings:

You can also use the `extends` property to extend a shareable config. Shareable configs can either be paths to local config files or npm package names.

The flag `--no-eslintrc` has been replaced with `--no-config-lookup`.